./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe019_rmo.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_rmo.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 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:04:26,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:04:26,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:04:26,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:04:26,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:04:26,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:04:26,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:04:26,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:04:26,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:04:26,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:04:26,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:04:26,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:04:26,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:04:26,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:04:26,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:04:26,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:04:26,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:04:26,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:04:26,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:04:26,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:04:26,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:04:26,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:04:26,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:04:26,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:04:26,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:04:26,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:04:26,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:04:26,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:04:26,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:04:26,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:04:26,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:04:26,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:04:26,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:04:26,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:04:26,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:04:26,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:04:26,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:04:26,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:04:26,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:04:26,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:04:26,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:04:26,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:04:26,396 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:04:26,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:04:26,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:04:26,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:04:26,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:04:26,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:04:26,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:04:26,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:04:26,400 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:04:26,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:04:26,401 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:04:26,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:04:26,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:04:26,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:04:26,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:04:26,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:04:26,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:04:26,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:04:26,402 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:04:26,403 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:04:26,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:04:26,403 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:04:26,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:04:26,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:04:26,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:04:26,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:04:26,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:04:26,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:04:26,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:04:26,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:04:26,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:04:26,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:04:26,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:04:26,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:04:26,406 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:04:26,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:04:26,406 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:04:26,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:04:26,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:04:26,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:04:26,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:04:26,788 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:04:26,788 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:04:26,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_rmo.oepc.i [2023-08-30 13:04:28,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:04:28,308 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:04:28,308 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_rmo.oepc.i [2023-08-30 13:04:28,325 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6b8a344/63ca2ad2208944f18548372c2c129fd0/FLAG8c4aa2988 [2023-08-30 13:04:28,340 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6b8a344/63ca2ad2208944f18548372c2c129fd0 [2023-08-30 13:04:28,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:04:28,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:04:28,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:04:28,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:04:28,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:04:28,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc299f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28, skipping insertion in model container [2023-08-30 13:04:28,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:04:28,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:04:28,511 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/safe019_rmo.oepc.i[993,1006] [2023-08-30 13:04:28,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:04:28,717 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:04:28,731 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/safe019_rmo.oepc.i[993,1006] [2023-08-30 13:04:28,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:04:28,861 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:04:28,862 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:04:28,867 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:04:28,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28 WrapperNode [2023-08-30 13:04:28,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:04:28,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:04:28,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:04:28,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:04:28,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,952 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 185 [2023-08-30 13:04:28,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:04:28,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:04:28,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:04:28,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:04:28,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:28,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:29,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:29,003 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:29,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:29,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:04:29,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:04:29,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:04:29,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:04:29,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (1/1) ... [2023-08-30 13:04:29,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:04:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:04:29,047 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 13:04:29,073 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 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:04:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:04:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:04:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 13:04:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:04:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:04:29,092 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 13:04:29,315 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:04:29,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:04:29,785 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:04:30,053 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:04:30,054 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:04:30,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:04:30 BoogieIcfgContainer [2023-08-30 13:04:30,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:04:30,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:04:30,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:04:30,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:04:30,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:04:28" (1/3) ... [2023-08-30 13:04:30,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394be15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:04:30, skipping insertion in model container [2023-08-30 13:04:30,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:04:28" (2/3) ... [2023-08-30 13:04:30,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394be15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:04:30, skipping insertion in model container [2023-08-30 13:04:30,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:04:30" (3/3) ... [2023-08-30 13:04:30,065 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_rmo.oepc.i [2023-08-30 13:04:30,072 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:04:30,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:04:30,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 13:04:30,089 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:04:30,163 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:04:30,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2023-08-30 13:04:30,295 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2023-08-30 13:04:30,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:04:30,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2023-08-30 13:04:30,302 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2023-08-30 13:04:30,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2023-08-30 13:04:30,316 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:04:30,327 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2023-08-30 13:04:30,330 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2023-08-30 13:04:30,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2023-08-30 13:04:30,378 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2023-08-30 13:04:30,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:04:30,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2023-08-30 13:04:30,382 INFO L119 LiptonReduction]: Number of co-enabled transitions 3344 [2023-08-30 13:04:40,451 INFO L134 LiptonReduction]: Checked pairs total: 10864 [2023-08-30 13:04:40,451 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-08-30 13:04:40,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:04:40,468 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;@1a34a6b1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:04:40,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 13:04:40,472 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:04:40,473 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:04:40,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:40,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:04:40,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:04:40,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:40,478 INFO L85 PathProgramCache]: Analyzing trace with hash 795775762, now seen corresponding path program 1 times [2023-08-30 13:04:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:40,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923183426] [2023-08-30 13:04:40,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:40,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:40,840 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 13:04:40,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923183426] [2023-08-30 13:04:40,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923183426] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:40,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:40,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:04:40,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583323533] [2023-08-30 13:04:40,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:40,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:04:40,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:04:40,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:04:40,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-08-30 13:04:40,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 13:04:40,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:40,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-08-30 13:04:40,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:42,255 INFO L130 PetriNetUnfolder]: 5759/8105 cut-off events. [2023-08-30 13:04:42,256 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2023-08-30 13:04:42,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16409 conditions, 8105 events. 5759/8105 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 44644 event pairs, 1669 based on Foata normal form. 0/5576 useless extension candidates. Maximal degree in co-relation 16397. Up to 7569 conditions per place. [2023-08-30 13:04:42,315 INFO L137 encePairwiseOnDemand]: 262/275 looper letters, 43 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2023-08-30 13:04:42,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 217 flow [2023-08-30 13:04:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:04:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:04:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2023-08-30 13:04:42,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5224242424242425 [2023-08-30 13:04:42,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 431 transitions. [2023-08-30 13:04:42,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 431 transitions. [2023-08-30 13:04:42,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:42,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 431 transitions. [2023-08-30 13:04:42,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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 13:04:42,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 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 13:04:42,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 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 13:04:42,348 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 74 flow. Second operand 3 states and 431 transitions. [2023-08-30 13:04:42,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 217 flow [2023-08-30 13:04:42,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 50 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:04:42,356 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 117 flow [2023-08-30 13:04:42,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-08-30 13:04:42,364 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-30 13:04:42,365 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 117 flow [2023-08-30 13:04:42,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 13:04:42,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:42,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:04:42,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:04:42,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:04:42,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash -696578614, now seen corresponding path program 1 times [2023-08-30 13:04:42,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:42,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175649436] [2023-08-30 13:04:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:42,482 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 13:04:42,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:42,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175649436] [2023-08-30 13:04:42,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175649436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:42,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:42,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:04:42,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350045460] [2023-08-30 13:04:42,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:42,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:04:42,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:42,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:04:42,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:04:42,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-08-30 13:04:42,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 13:04:42,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:42,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-08-30 13:04:42,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:43,355 INFO L130 PetriNetUnfolder]: 3197/4511 cut-off events. [2023-08-30 13:04:43,355 INFO L131 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2023-08-30 13:04:43,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11364 conditions, 4511 events. 3197/4511 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 22483 event pairs, 765 based on Foata normal form. 0/3688 useless extension candidates. Maximal degree in co-relation 11353. Up to 3974 conditions per place. [2023-08-30 13:04:43,383 INFO L137 encePairwiseOnDemand]: 266/275 looper letters, 39 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-08-30 13:04:43,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 225 flow [2023-08-30 13:04:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:04:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:04:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2023-08-30 13:04:43,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49818181818181817 [2023-08-30 13:04:43,387 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2023-08-30 13:04:43,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2023-08-30 13:04:43,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:43,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2023-08-30 13:04:43,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 13:04:43,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 275.0) internal successors, (1375), 5 states have internal predecessors, (1375), 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 13:04:43,392 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 275.0) internal successors, (1375), 5 states have internal predecessors, (1375), 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 13:04:43,393 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 117 flow. Second operand 4 states and 548 transitions. [2023-08-30 13:04:43,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 225 flow [2023-08-30 13:04:43,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:04:43,401 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 106 flow [2023-08-30 13:04:43,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2023-08-30 13:04:43,403 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-30 13:04:43,403 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 106 flow [2023-08-30 13:04:43,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 13:04:43,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:43,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:04:43,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:04:43,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:04:43,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -696578613, now seen corresponding path program 1 times [2023-08-30 13:04:43,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:43,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142777614] [2023-08-30 13:04:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:43,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:43,514 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 13:04:43,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:43,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142777614] [2023-08-30 13:04:43,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142777614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:43,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:43,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:04:43,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716141738] [2023-08-30 13:04:43,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:43,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:04:43,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:43,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:04:43,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:04:43,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-08-30 13:04:43,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 13:04:43,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:43,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-08-30 13:04:43,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:44,079 INFO L130 PetriNetUnfolder]: 1937/2781 cut-off events. [2023-08-30 13:04:44,079 INFO L131 PetriNetUnfolder]: For 758/758 co-relation queries the response was YES. [2023-08-30 13:04:44,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6939 conditions, 2781 events. 1937/2781 cut-off events. For 758/758 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12841 event pairs, 395 based on Foata normal form. 0/2586 useless extension candidates. Maximal degree in co-relation 6927. Up to 1277 conditions per place. [2023-08-30 13:04:44,094 INFO L137 encePairwiseOnDemand]: 266/275 looper letters, 52 selfloop transitions, 9 changer transitions 0/63 dead transitions. [2023-08-30 13:04:44,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 310 flow [2023-08-30 13:04:44,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:04:44,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:04:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 565 transitions. [2023-08-30 13:04:44,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5136363636363637 [2023-08-30 13:04:44,096 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 565 transitions. [2023-08-30 13:04:44,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 565 transitions. [2023-08-30 13:04:44,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:44,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 565 transitions. [2023-08-30 13:04:44,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 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 13:04:44,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 275.0) internal successors, (1375), 5 states have internal predecessors, (1375), 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 13:04:44,101 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 275.0) internal successors, (1375), 5 states have internal predecessors, (1375), 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 13:04:44,101 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 106 flow. Second operand 4 states and 565 transitions. [2023-08-30 13:04:44,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 310 flow [2023-08-30 13:04:44,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 63 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:04:44,104 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 158 flow [2023-08-30 13:04:44,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-08-30 13:04:44,105 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-30 13:04:44,105 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 158 flow [2023-08-30 13:04:44,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 13:04:44,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:44,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:04:44,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:04:44,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:04:44,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1999677181, now seen corresponding path program 1 times [2023-08-30 13:04:44,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:44,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281799811] [2023-08-30 13:04:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:44,196 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 13:04:44,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:44,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281799811] [2023-08-30 13:04:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281799811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:04:44,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403888895] [2023-08-30 13:04:44,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:44,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:04:44,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:44,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:04:44,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:04:44,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-08-30 13:04:44,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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 13:04:44,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:44,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-08-30 13:04:44,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:44,763 INFO L130 PetriNetUnfolder]: 1679/2373 cut-off events. [2023-08-30 13:04:44,764 INFO L131 PetriNetUnfolder]: For 1560/1560 co-relation queries the response was YES. [2023-08-30 13:04:44,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6992 conditions, 2373 events. 1679/2373 cut-off events. For 1560/1560 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10494 event pairs, 351 based on Foata normal form. 0/2352 useless extension candidates. Maximal degree in co-relation 6979. Up to 968 conditions per place. [2023-08-30 13:04:44,784 INFO L137 encePairwiseOnDemand]: 266/275 looper letters, 59 selfloop transitions, 13 changer transitions 4/78 dead transitions. [2023-08-30 13:04:44,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 424 flow [2023-08-30 13:04:44,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:04:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:04:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 705 transitions. [2023-08-30 13:04:44,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5127272727272727 [2023-08-30 13:04:44,787 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 705 transitions. [2023-08-30 13:04:44,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 705 transitions. [2023-08-30 13:04:44,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:44,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 705 transitions. [2023-08-30 13:04:44,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 13:04:44,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 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 13:04:44,793 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 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 13:04:44,793 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 158 flow. Second operand 5 states and 705 transitions. [2023-08-30 13:04:44,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 424 flow [2023-08-30 13:04:44,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 78 transitions, 406 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 13:04:44,799 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 182 flow [2023-08-30 13:04:44,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2023-08-30 13:04:44,801 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2023-08-30 13:04:44,801 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 182 flow [2023-08-30 13:04:44,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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 13:04:44,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:44,802 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] [2023-08-30 13:04:44,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:04:44,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:04:44,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2024740300, now seen corresponding path program 1 times [2023-08-30 13:04:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:44,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134767036] [2023-08-30 13:04:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:44,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:44,953 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 13:04:44,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:44,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134767036] [2023-08-30 13:04:44,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134767036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:44,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:44,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:04:44,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691237770] [2023-08-30 13:04:44,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:44,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:04:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:44,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:04:44,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:04:44,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-08-30 13:04:44,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 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 13:04:44,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:44,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-08-30 13:04:44,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:45,596 INFO L130 PetriNetUnfolder]: 1652/2326 cut-off events. [2023-08-30 13:04:45,596 INFO L131 PetriNetUnfolder]: For 2014/2014 co-relation queries the response was YES. [2023-08-30 13:04:45,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7041 conditions, 2326 events. 1652/2326 cut-off events. For 2014/2014 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10296 event pairs, 351 based on Foata normal form. 16/2337 useless extension candidates. Maximal degree in co-relation 7027. Up to 968 conditions per place. [2023-08-30 13:04:45,602 INFO L137 encePairwiseOnDemand]: 266/275 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2023-08-30 13:04:45,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 70 transitions, 376 flow [2023-08-30 13:04:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:04:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:04:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 822 transitions. [2023-08-30 13:04:45,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49818181818181817 [2023-08-30 13:04:45,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 822 transitions. [2023-08-30 13:04:45,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 822 transitions. [2023-08-30 13:04:45,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:45,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 822 transitions. [2023-08-30 13:04:45,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 13:04:45,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 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 13:04:45,611 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 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 13:04:45,611 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 182 flow. Second operand 6 states and 822 transitions. [2023-08-30 13:04:45,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 70 transitions, 376 flow [2023-08-30 13:04:45,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 70 transitions, 321 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 13:04:45,638 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-30 13:04:45,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-30 13:04:45,639 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-30 13:04:45,639 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-30 13:04:45,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 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 13:04:45,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 13:04:45,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 13:04:45,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 13:04:45,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 13:04:45,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 13:04:45,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 13:04:45,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 13:04:45,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 13:04:45,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 13:04:45,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 13:04:45,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 13:04:45,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 13:04:45,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 13:04:45,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 13:04:45,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 13:04:45,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 13:04:45,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 13:04:45,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 13:04:45,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 13:04:45,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 13:04:45,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:04:45,646 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 13:04:45,651 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:04:45,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:04:45,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:04:45 BasicIcfg [2023-08-30 13:04:45,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:04:45,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:04:45,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:04:45,655 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:04:45,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:04:30" (3/4) ... [2023-08-30 13:04:45,658 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:04:45,662 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:04:45,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:04:45,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:04:45,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 13:04:45,668 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2023-08-30 13:04:45,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 13:04:45,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:04:45,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:04:45,707 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:04:45,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:04:45,708 INFO L158 Benchmark]: Toolchain (without parser) took 17364.71ms. Allocated memory was 79.7MB in the beginning and 912.3MB in the end (delta: 832.6MB). Free memory was 55.7MB in the beginning and 812.2MB in the end (delta: -756.6MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,708 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:04:45,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.83ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 52.7MB in the end (delta: 3.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.17ms. Allocated memory is still 79.7MB. Free memory was 52.7MB in the beginning and 49.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,709 INFO L158 Benchmark]: Boogie Preprocessor took 63.87ms. Allocated memory is still 79.7MB. Free memory was 49.8MB in the beginning and 47.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,709 INFO L158 Benchmark]: RCFGBuilder took 1038.87ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 47.4MB in the beginning and 38.7MB in the end (delta: 8.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,709 INFO L158 Benchmark]: TraceAbstraction took 15595.81ms. Allocated memory was 96.5MB in the beginning and 912.3MB in the end (delta: 815.8MB). Free memory was 37.8MB in the beginning and 816.4MB in the end (delta: -778.6MB). Peak memory consumption was 476.4MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,710 INFO L158 Benchmark]: Witness Printer took 52.20ms. Allocated memory is still 912.3MB. Free memory was 816.4MB in the beginning and 812.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:04:45,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.83ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 52.7MB in the end (delta: 3.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.17ms. Allocated memory is still 79.7MB. Free memory was 52.7MB in the beginning and 49.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.87ms. Allocated memory is still 79.7MB. Free memory was 49.8MB in the beginning and 47.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1038.87ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 47.4MB in the beginning and 38.7MB in the end (delta: 8.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15595.81ms. Allocated memory was 96.5MB in the beginning and 912.3MB in the end (delta: 815.8MB). Free memory was 37.8MB in the beginning and 816.4MB in the end (delta: -778.6MB). Peak memory consumption was 476.4MB. Max. memory is 16.1GB. * Witness Printer took 52.20ms. Allocated memory is still 912.3MB. Free memory was 816.4MB in the beginning and 812.2MB in the end (delta: 4.2MB). 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: 10.1s, 157 PlacesBefore, 44 PlacesAfterwards, 146 TransitionsBefore, 31 TransitionsAfterwards, 3344 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 125 TotalNumberOfCompositions, 10864 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4749, independent: 4418, independent conditional: 0, independent unconditional: 4418, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1747, independent: 1688, independent conditional: 0, independent unconditional: 1688, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4749, independent: 2730, independent conditional: 0, independent unconditional: 2730, dependent: 272, dependent conditional: 0, dependent unconditional: 272, unknown: 1747, unknown conditional: 0, unknown unconditional: 1747] , Statistics on independence cache: Total cache size (in pairs): 194, Positive cache size: 169, Positive conditional cache size: 0, Positive unconditional cache size: 169, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 189 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: 15.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 10 mSDtfsCounter, 395 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=182occurred 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, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 159 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! [2023-08-30 13:04:45,736 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