./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/pthread-wmm/mix021_tso.oepc.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 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:17:12,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:17:12,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:17:12,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:17:12,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:17:12,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:17:12,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:17:12,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:17:12,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:17:12,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:17:12,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:17:12,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:17:12,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:17:12,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:17:12,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:17:12,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:17:12,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:17:12,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:17:12,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:17:12,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:17:12,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:17:12,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:17:12,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:17:12,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:17:12,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:17:12,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:17:12,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:17:12,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:17:12,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:17:12,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:17:12,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:17:12,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:17:12,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:17:12,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:17:12,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:17:12,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:17:12,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:17:12,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:17:12,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:17:12,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:17:12,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:17:12,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:17:12,728 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:17:12,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:17:12,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:17:12,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:17:12,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:17:12,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:17:12,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:17:12,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:17:12,732 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:17:12,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:17:12,732 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:17:12,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:17:12,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:17:12,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:17:12,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:17:12,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:17:12,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:17:12,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:17:12,734 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:17:12,734 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:17:12,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:17:12,734 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:17:12,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:17:12,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:17:12,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:17:12,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:17:12,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:17:12,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:17:12,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:17:12,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:17:12,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:17:12,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:17:12,736 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:17:12,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:17:12,737 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:17:12,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:17:12,737 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:17:12,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:17:12,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:17:13,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:17:13,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:17:13,005 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:17:13,005 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:17:13,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2023-09-01 05:17:14,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:17:14,391 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:17:14,391 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2023-09-01 05:17:14,399 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42456d551/09e9488735a4419d8284d03377f4b4d5/FLAG0015c69fd [2023-09-01 05:17:14,411 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42456d551/09e9488735a4419d8284d03377f4b4d5 [2023-09-01 05:17:14,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:17:14,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:17:14,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:17:14,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:17:14,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:17:14,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ec831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14, skipping insertion in model container [2023-09-01 05:17:14,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:17:14,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:17:14,572 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i[949,962] [2023-09-01 05:17:14,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:17:14,695 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:17:14,705 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i[949,962] [2023-09-01 05:17:14,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:17:14,777 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:17:14,778 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:17:14,782 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:17:14,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14 WrapperNode [2023-09-01 05:17:14,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:17:14,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:17:14,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:17:14,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:17:14,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,836 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 163 [2023-09-01 05:17:14,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:17:14,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:17:14,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:17:14,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:17:14,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:17:14,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:17:14,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:17:14,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:17:14,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (1/1) ... [2023-09-01 05:17:14,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:17:14,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:17:14,909 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) [2023-09-01 05:17:14,927 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 [2023-09-01 05:17:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:17:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:17:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:17:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:17:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:17:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:17:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:17:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:17:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:17:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:17:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:17:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:17:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:17:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:17:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:17:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:17:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:17:14,940 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:17:15,045 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:17:15,047 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:17:15,326 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:17:15,574 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:17:15,575 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:17:15,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:17:15 BoogieIcfgContainer [2023-09-01 05:17:15,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:17:15,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:17:15,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:17:15,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:17:15,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:17:14" (1/3) ... [2023-09-01 05:17:15,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f1b4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:17:15, skipping insertion in model container [2023-09-01 05:17:15,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:14" (2/3) ... [2023-09-01 05:17:15,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f1b4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:17:15, skipping insertion in model container [2023-09-01 05:17:15,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:17:15" (3/3) ... [2023-09-01 05:17:15,582 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2023-09-01 05:17:15,587 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:17:15,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:17:15,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:17:15,596 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:17:15,665 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:17:15,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 135 transitions, 290 flow [2023-09-01 05:17:15,728 INFO L130 PetriNetUnfolder]: 2/131 cut-off events. [2023-09-01 05:17:15,728 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:17:15,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 2/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-09-01 05:17:15,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 135 transitions, 290 flow [2023-09-01 05:17:15,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 131 transitions, 274 flow [2023-09-01 05:17:15,738 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:17:15,744 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 131 transitions, 274 flow [2023-09-01 05:17:15,746 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 131 transitions, 274 flow [2023-09-01 05:17:15,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 274 flow [2023-09-01 05:17:15,772 INFO L130 PetriNetUnfolder]: 2/131 cut-off events. [2023-09-01 05:17:15,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:17:15,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 2/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-09-01 05:17:15,774 INFO L119 LiptonReduction]: Number of co-enabled transitions 3844 [2023-09-01 05:17:19,069 INFO L134 LiptonReduction]: Checked pairs total: 14731 [2023-09-01 05:17:19,070 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-09-01 05:17:19,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:17:19,089 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;@54fe422b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:17:19,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:17:19,093 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:17:19,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:17:19,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:19,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:17:19,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:19,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:19,100 INFO L85 PathProgramCache]: Analyzing trace with hash 543646657, now seen corresponding path program 1 times [2023-09-01 05:17:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:19,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764838973] [2023-09-01 05:17:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:19,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:17:19,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:19,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764838973] [2023-09-01 05:17:19,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764838973] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:19,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:19,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:17:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833590623] [2023-09-01 05:17:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:19,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:17:19,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:19,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:17:19,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:17:19,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 237 [2023-09-01 05:17:19,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:17:19,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:19,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 237 [2023-09-01 05:17:19,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:20,484 INFO L130 PetriNetUnfolder]: 9625/13502 cut-off events. [2023-09-01 05:17:20,484 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2023-09-01 05:17:20,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27192 conditions, 13502 events. 9625/13502 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 80195 event pairs, 4367 based on Foata normal form. 634/9394 useless extension candidates. Maximal degree in co-relation 27180. Up to 12989 conditions per place. [2023-09-01 05:17:20,562 INFO L137 encePairwiseOnDemand]: 222/237 looper letters, 45 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2023-09-01 05:17:20,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 231 flow [2023-09-01 05:17:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:17:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:17:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-09-01 05:17:20,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5457102672292545 [2023-09-01 05:17:20,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-09-01 05:17:20,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-09-01 05:17:20,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:20,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-09-01 05:17:20,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2023-09-01 05:17:20,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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) [2023-09-01 05:17:20,589 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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) [2023-09-01 05:17:20,590 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 3 states and 388 transitions. [2023-09-01 05:17:20,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 231 flow [2023-09-01 05:17:20,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 55 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:17:20,597 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 131 flow [2023-09-01 05:17:20,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-09-01 05:17:20,601 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-09-01 05:17:20,603 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 131 flow [2023-09-01 05:17:20,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:17:20,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:20,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:20,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:17:20,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:20,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:20,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1430773745, now seen corresponding path program 1 times [2023-09-01 05:17:20,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:20,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690166511] [2023-09-01 05:17:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:20,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:17:20,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:20,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690166511] [2023-09-01 05:17:20,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690166511] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:20,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:17:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695538746] [2023-09-01 05:17:20,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:20,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:17:20,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:17:20,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:17:20,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 237 [2023-09-01 05:17:20,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2023-09-01 05:17:20,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:20,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 237 [2023-09-01 05:17:20,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:21,367 INFO L130 PetriNetUnfolder]: 5245/7430 cut-off events. [2023-09-01 05:17:21,367 INFO L131 PetriNetUnfolder]: For 648/648 co-relation queries the response was YES. [2023-09-01 05:17:21,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18439 conditions, 7430 events. 5245/7430 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 40949 event pairs, 1863 based on Foata normal form. 0/6018 useless extension candidates. Maximal degree in co-relation 18428. Up to 6916 conditions per place. [2023-09-01 05:17:21,415 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 41 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-09-01 05:17:21,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 241 flow [2023-09-01 05:17:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:17:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:17:21,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 486 transitions. [2023-09-01 05:17:21,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5126582278481012 [2023-09-01 05:17:21,417 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 486 transitions. [2023-09-01 05:17:21,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 486 transitions. [2023-09-01 05:17:21,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:21,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 486 transitions. [2023-09-01 05:17:21,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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) [2023-09-01 05:17:21,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 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) [2023-09-01 05:17:21,421 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 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) [2023-09-01 05:17:21,422 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 131 flow. Second operand 4 states and 486 transitions. [2023-09-01 05:17:21,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 241 flow [2023-09-01 05:17:21,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 51 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:17:21,424 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 120 flow [2023-09-01 05:17:21,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-09-01 05:17:21,425 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-09-01 05:17:21,425 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 120 flow [2023-09-01 05:17:21,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2023-09-01 05:17:21,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:21,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:21,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:17:21,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:21,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1430773744, now seen corresponding path program 1 times [2023-09-01 05:17:21,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:21,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669883795] [2023-09-01 05:17:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:21,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:17:21,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:21,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669883795] [2023-09-01 05:17:21,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669883795] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:21,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:21,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:17:21,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852512685] [2023-09-01 05:17:21,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:21,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:17:21,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:17:21,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:17:21,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 237 [2023-09-01 05:17:21,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2023-09-01 05:17:21,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:21,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 237 [2023-09-01 05:17:21,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:21,878 INFO L130 PetriNetUnfolder]: 2034/3091 cut-off events. [2023-09-01 05:17:21,879 INFO L131 PetriNetUnfolder]: For 702/702 co-relation queries the response was YES. [2023-09-01 05:17:21,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7616 conditions, 3091 events. 2034/3091 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 15885 event pairs, 585 based on Foata normal form. 81/2826 useless extension candidates. Maximal degree in co-relation 7604. Up to 1863 conditions per place. [2023-09-01 05:17:21,888 INFO L137 encePairwiseOnDemand]: 227/237 looper letters, 53 selfloop transitions, 9 changer transitions 0/67 dead transitions. [2023-09-01 05:17:21,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 67 transitions, 322 flow [2023-09-01 05:17:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:17:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:17:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 503 transitions. [2023-09-01 05:17:21,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305907172995781 [2023-09-01 05:17:21,890 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 503 transitions. [2023-09-01 05:17:21,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 503 transitions. [2023-09-01 05:17:21,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:21,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 503 transitions. [2023-09-01 05:17:21,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.75) internal successors, (503), 4 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) [2023-09-01 05:17:21,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 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) [2023-09-01 05:17:21,893 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 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) [2023-09-01 05:17:21,893 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 120 flow. Second operand 4 states and 503 transitions. [2023-09-01 05:17:21,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 67 transitions, 322 flow [2023-09-01 05:17:21,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:17:21,895 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 174 flow [2023-09-01 05:17:21,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-09-01 05:17:21,896 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-09-01 05:17:21,896 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 174 flow [2023-09-01 05:17:21,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2023-09-01 05:17:21,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:21,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:21,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:17:21,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:21,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1615442128, now seen corresponding path program 1 times [2023-09-01 05:17:21,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423763950] [2023-09-01 05:17:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:21,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:17:21,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:21,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423763950] [2023-09-01 05:17:21,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423763950] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:21,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:21,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:17:21,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179478761] [2023-09-01 05:17:21,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:21,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:17:21,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:21,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:17:21,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:17:21,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 237 [2023-09-01 05:17:21,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 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) [2023-09-01 05:17:21,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:21,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 237 [2023-09-01 05:17:21,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:22,162 INFO L130 PetriNetUnfolder]: 1239/1876 cut-off events. [2023-09-01 05:17:22,162 INFO L131 PetriNetUnfolder]: For 1230/1230 co-relation queries the response was YES. [2023-09-01 05:17:22,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5401 conditions, 1876 events. 1239/1876 cut-off events. For 1230/1230 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8734 event pairs, 319 based on Foata normal form. 45/1851 useless extension candidates. Maximal degree in co-relation 5388. Up to 715 conditions per place. [2023-09-01 05:17:22,171 INFO L137 encePairwiseOnDemand]: 227/237 looper letters, 59 selfloop transitions, 13 changer transitions 4/81 dead transitions. [2023-09-01 05:17:22,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 81 transitions, 434 flow [2023-09-01 05:17:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:17:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:17:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 626 transitions. [2023-09-01 05:17:22,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5282700421940928 [2023-09-01 05:17:22,173 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 626 transitions. [2023-09-01 05:17:22,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 626 transitions. [2023-09-01 05:17:22,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:22,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 626 transitions. [2023-09-01 05:17:22,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.2) internal successors, (626), 5 states have internal predecessors, (626), 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) [2023-09-01 05:17:22,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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) [2023-09-01 05:17:22,177 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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) [2023-09-01 05:17:22,177 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 174 flow. Second operand 5 states and 626 transitions. [2023-09-01 05:17:22,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 81 transitions, 434 flow [2023-09-01 05:17:22,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 81 transitions, 416 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:17:22,181 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 200 flow [2023-09-01 05:17:22,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-09-01 05:17:22,181 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-09-01 05:17:22,181 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 200 flow [2023-09-01 05:17:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 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) [2023-09-01 05:17:22,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:22,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:22,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:17:22,182 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:22,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -484323463, now seen corresponding path program 1 times [2023-09-01 05:17:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:22,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670797647] [2023-09-01 05:17:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:17:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670797647] [2023-09-01 05:17:22,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670797647] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:22,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:22,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:17:22,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958796586] [2023-09-01 05:17:22,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:22,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:17:22,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:22,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:17:22,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:17:22,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 237 [2023-09-01 05:17:22,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2023-09-01 05:17:22,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:22,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 237 [2023-09-01 05:17:22,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:22,453 INFO L130 PetriNetUnfolder]: 1168/1731 cut-off events. [2023-09-01 05:17:22,453 INFO L131 PetriNetUnfolder]: For 1482/1482 co-relation queries the response was YES. [2023-09-01 05:17:22,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5128 conditions, 1731 events. 1168/1731 cut-off events. For 1482/1482 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7990 event pairs, 299 based on Foata normal form. 19/1704 useless extension candidates. Maximal degree in co-relation 5114. Up to 715 conditions per place. [2023-09-01 05:17:22,458 INFO L137 encePairwiseOnDemand]: 227/237 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2023-09-01 05:17:22,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 69 transitions, 366 flow [2023-09-01 05:17:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:17:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:17:22,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 723 transitions. [2023-09-01 05:17:22,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5084388185654009 [2023-09-01 05:17:22,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 723 transitions. [2023-09-01 05:17:22,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 723 transitions. [2023-09-01 05:17:22,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:22,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 723 transitions. [2023-09-01 05:17:22,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 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) [2023-09-01 05:17:22,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 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) [2023-09-01 05:17:22,464 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 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) [2023-09-01 05:17:22,465 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 200 flow. Second operand 6 states and 723 transitions. [2023-09-01 05:17:22,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 69 transitions, 366 flow [2023-09-01 05:17:22,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 311 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:17:22,477 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-09-01 05:17:22,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-09-01 05:17:22,478 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -7 predicate places. [2023-09-01 05:17:22,478 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-09-01 05:17:22,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2023-09-01 05:17:22,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:17:22,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:17:22,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:17:22,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:17:22,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:17:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:17:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:17:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:17:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:17:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:17:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:17:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:17:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:17:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:17:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:17:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:17:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:17:22,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:17:22,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:17:22,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:17:22,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:17:22,484 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:17:22,488 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:17:22,488 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:17:22,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:17:22 BasicIcfg [2023-09-01 05:17:22,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:17:22,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:17:22,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:17:22,491 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:17:22,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:17:15" (3/4) ... [2023-09-01 05:17:22,493 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:17:22,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:17:22,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:17:22,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:17:22,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:17:22,500 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2023-09-01 05:17:22,500 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-09-01 05:17:22,500 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:17:22,500 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:17:22,526 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:17:22,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:17:22,527 INFO L158 Benchmark]: Toolchain (without parser) took 8112.18ms. Allocated memory was 77.6MB in the beginning and 1.0GB in the end (delta: 964.7MB). Free memory was 52.7MB in the beginning and 598.0MB in the end (delta: -545.3MB). Peak memory consumption was 419.6MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,527 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:17:22,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.60ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 47.4MB in the end (delta: 5.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.27ms. Allocated memory is still 77.6MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,528 INFO L158 Benchmark]: Boogie Preprocessor took 48.76ms. Allocated memory is still 77.6MB. Free memory was 44.5MB in the beginning and 42.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,528 INFO L158 Benchmark]: RCFGBuilder took 691.21ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 51.1MB in the end (delta: -8.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,528 INFO L158 Benchmark]: TraceAbstraction took 6912.11ms. Allocated memory was 77.6MB in the beginning and 1.0GB in the end (delta: 964.7MB). Free memory was 50.2MB in the beginning and 601.1MB in the end (delta: -550.9MB). Peak memory consumption was 413.0MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,528 INFO L158 Benchmark]: Witness Printer took 35.87ms. Allocated memory is still 1.0GB. Free memory was 601.1MB in the beginning and 598.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:17:22,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.60ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 47.4MB in the end (delta: 5.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.27ms. Allocated memory is still 77.6MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.76ms. Allocated memory is still 77.6MB. Free memory was 44.5MB in the beginning and 42.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.21ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 51.1MB in the end (delta: -8.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6912.11ms. Allocated memory was 77.6MB in the beginning and 1.0GB in the end (delta: 964.7MB). Free memory was 50.2MB in the beginning and 601.1MB in the end (delta: -550.9MB). Peak memory consumption was 413.0MB. Max. memory is 16.1GB. * Witness Printer took 35.87ms. Allocated memory is still 1.0GB. Free memory was 601.1MB in the beginning and 598.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 142 PlacesBefore, 50 PlacesAfterwards, 131 TransitionsBefore, 38 TransitionsAfterwards, 3844 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 14731 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6511, independent: 6147, independent conditional: 0, independent unconditional: 6147, dependent: 364, dependent conditional: 0, dependent unconditional: 364, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1989, independent: 1942, independent conditional: 0, independent unconditional: 1942, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6511, independent: 4205, independent conditional: 0, independent unconditional: 4205, dependent: 317, dependent conditional: 0, dependent unconditional: 317, unknown: 1989, unknown conditional: 0, unknown unconditional: 1989] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 287, Positive conditional cache size: 0, Positive unconditional cache size: 287, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: 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 9 procedures, 178 locations, 20 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: 6.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 409 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 1 mSDtfsCounter, 409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.3s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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! [2023-09-01 05:17:22,557 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