./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --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 05:25:59,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:25:59,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:25:59,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:25:59,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:25:59,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:25:59,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:25:59,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:25:59,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:25:59,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:25:59,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:25:59,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:25:59,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:25:59,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:25:59,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:25:59,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:25:59,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:25:59,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:25:59,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:25:59,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:26:00,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:26:00,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:26:00,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:26:00,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:26:00,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:26:00,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:26:00,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:26:00,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:26:00,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:26:00,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:26:00,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:26:00,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:26:00,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:26:00,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:26:00,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:26:00,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:26:00,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:26:00,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:26:00,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:26:00,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:26:00,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:26:00,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:26:00,063 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:26:00,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:26:00,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:26:00,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:26:00,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:26:00,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:26:00,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:26:00,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:26:00,066 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:26:00,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:26:00,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:26:00,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:26:00,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:26:00,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:26:00,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:00,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:26:00,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:26:00,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:26:00,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:26:00,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:26:00,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:26:00,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:26:00,071 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:26:00,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:26:00,071 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:26:00,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:26:00,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:26:00,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:26:00,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:26:00,432 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:26:00,432 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:26:00,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-09-01 05:26:01,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:26:01,831 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:26:01,835 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-09-01 05:26:01,856 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0bc741d5/656b1479f9524607b929ac817888d377/FLAGd1b6f0d14 [2023-09-01 05:26:01,870 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0bc741d5/656b1479f9524607b929ac817888d377 [2023-09-01 05:26:01,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:26:01,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:26:01,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:01,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:26:01,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:26:01,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:01" (1/1) ... [2023-09-01 05:26:01,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c34ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:01, skipping insertion in model container [2023-09-01 05:26:01,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:01" (1/1) ... [2023-09-01 05:26:01,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:26:01,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:26:02,079 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-09-01 05:26:02,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:02,259 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:26:02,277 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-09-01 05:26:02,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:02,354 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:02,354 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:02,359 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:26:02,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02 WrapperNode [2023-09-01 05:26:02,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:02,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:02,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:26:02,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:26:02,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,406 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-09-01 05:26:02,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:02,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:26:02,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:26:02,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:26:02,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,440 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:26:02,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:26:02,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:26:02,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:26:02,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (1/1) ... [2023-09-01 05:26:02,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:26:02,538 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 05:26:02,564 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 05:26:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:26:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:26:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:26:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:26:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:26:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:26:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:26:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:26:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:26:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:26:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:26:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:26:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:26:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:26:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:26:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:26:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:26:02,585 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 05:26:02,761 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:26:02,763 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:26:03,000 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:26:03,031 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:26:03,033 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:26:03,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:03 BoogieIcfgContainer [2023-09-01 05:26:03,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:26:03,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:26:03,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:26:03,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:26:03,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:26:01" (1/3) ... [2023-09-01 05:26:03,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a156a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:03, skipping insertion in model container [2023-09-01 05:26:03,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:02" (2/3) ... [2023-09-01 05:26:03,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a156a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:03, skipping insertion in model container [2023-09-01 05:26:03,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:03" (3/3) ... [2023-09-01 05:26:03,043 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-09-01 05:26:03,050 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:26:03,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:26:03,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:26:03,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:26:03,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:26:03,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 234 flow [2023-09-01 05:26:03,249 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2023-09-01 05:26:03,249 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:03,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-09-01 05:26:03,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 107 transitions, 234 flow [2023-09-01 05:26:03,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 103 transitions, 218 flow [2023-09-01 05:26:03,274 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:26:03,291 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 103 transitions, 218 flow [2023-09-01 05:26:03,295 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 103 transitions, 218 flow [2023-09-01 05:26:03,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 103 transitions, 218 flow [2023-09-01 05:26:03,327 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2023-09-01 05:26:03,328 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:03,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-09-01 05:26:03,332 INFO L119 LiptonReduction]: Number of co-enabled transitions 3058 [2023-09-01 05:26:05,985 INFO L134 LiptonReduction]: Checked pairs total: 8009 [2023-09-01 05:26:05,986 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-09-01 05:26:05,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:26:06,008 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;@195cddbf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:26:06,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:26:06,012 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:26:06,012 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:06,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:06,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:26:06,013 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 05:26:06,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:06,018 INFO L85 PathProgramCache]: Analyzing trace with hash 366822342, now seen corresponding path program 1 times [2023-09-01 05:26:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811150683] [2023-09-01 05:26:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:06,213 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 05:26:06,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:06,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811150683] [2023-09-01 05:26:06,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811150683] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:06,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:06,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:26:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707509945] [2023-09-01 05:26:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:06,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:26:06,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:06,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:26:06,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:26:06,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-09-01 05:26:06,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 05:26:06,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:06,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-09-01 05:26:06,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:06,832 INFO L130 PetriNetUnfolder]: 3036/4372 cut-off events. [2023-09-01 05:26:06,832 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2023-09-01 05:26:06,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8912 conditions, 4372 events. 3036/4372 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 23737 event pairs, 999 based on Foata normal form. 0/2787 useless extension candidates. Maximal degree in co-relation 8900. Up to 4171 conditions per place. [2023-09-01 05:26:06,866 INFO L137 encePairwiseOnDemand]: 177/191 looper letters, 37 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-09-01 05:26:06,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 193 flow [2023-09-01 05:26:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:26:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:26:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-09-01 05:26:06,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5462478184991274 [2023-09-01 05:26:06,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-09-01 05:26:06,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-09-01 05:26:06,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:06,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-09-01 05:26:06,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:06,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 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 05:26:06,892 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 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 05:26:06,894 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 70 flow. Second operand 3 states and 313 transitions. [2023-09-01 05:26:06,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 193 flow [2023-09-01 05:26:06,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 186 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:26:06,899 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 111 flow [2023-09-01 05:26:06,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-09-01 05:26:06,904 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2023-09-01 05:26:06,905 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 111 flow [2023-09-01 05:26:06,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 05:26:06,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:06,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:06,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:26:06,906 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 05:26:06,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1243245532, now seen corresponding path program 1 times [2023-09-01 05:26:06,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:06,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640438234] [2023-09-01 05:26:06,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:06,994 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 05:26:06,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:06,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640438234] [2023-09-01 05:26:06,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640438234] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:06,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:06,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:26:06,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910722111] [2023-09-01 05:26:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:06,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:26:06,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:06,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:26:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:26:07,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-09-01 05:26:07,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 05:26:07,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:07,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-09-01 05:26:07,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:07,290 INFO L130 PetriNetUnfolder]: 1540/2242 cut-off events. [2023-09-01 05:26:07,290 INFO L131 PetriNetUnfolder]: For 122/132 co-relation queries the response was YES. [2023-09-01 05:26:07,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5839 conditions, 2242 events. 1540/2242 cut-off events. For 122/132 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10700 event pairs, 387 based on Foata normal form. 8/1755 useless extension candidates. Maximal degree in co-relation 5828. Up to 2040 conditions per place. [2023-09-01 05:26:07,308 INFO L137 encePairwiseOnDemand]: 182/191 looper letters, 33 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-09-01 05:26:07,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 201 flow [2023-09-01 05:26:07,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:26:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:26:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 390 transitions. [2023-09-01 05:26:07,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5104712041884817 [2023-09-01 05:26:07,311 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 390 transitions. [2023-09-01 05:26:07,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 390 transitions. [2023-09-01 05:26:07,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:07,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 390 transitions. [2023-09-01 05:26:07,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 05:26:07,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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 05:26:07,316 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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 05:26:07,316 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 111 flow. Second operand 4 states and 390 transitions. [2023-09-01 05:26:07,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 201 flow [2023-09-01 05:26:07,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:26:07,318 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 100 flow [2023-09-01 05:26:07,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2023-09-01 05:26:07,319 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2023-09-01 05:26:07,319 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 100 flow [2023-09-01 05:26:07,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 05:26:07,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:07,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:07,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:26:07,320 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 05:26:07,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1243245531, now seen corresponding path program 1 times [2023-09-01 05:26:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:07,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16795542] [2023-09-01 05:26:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:07,389 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 05:26:07,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:07,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16795542] [2023-09-01 05:26:07,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16795542] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:07,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:26:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055745845] [2023-09-01 05:26:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:07,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:26:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:26:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:26:07,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-09-01 05:26:07,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 05:26:07,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:07,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-09-01 05:26:07,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:07,610 INFO L130 PetriNetUnfolder]: 868/1308 cut-off events. [2023-09-01 05:26:07,610 INFO L131 PetriNetUnfolder]: For 370/380 co-relation queries the response was YES. [2023-09-01 05:26:07,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3382 conditions, 1308 events. 868/1308 cut-off events. For 370/380 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5666 event pairs, 148 based on Foata normal form. 8/1185 useless extension candidates. Maximal degree in co-relation 3370. Up to 707 conditions per place. [2023-09-01 05:26:07,621 INFO L137 encePairwiseOnDemand]: 182/191 looper letters, 43 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-09-01 05:26:07,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 274 flow [2023-09-01 05:26:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:26:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:26:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2023-09-01 05:26:07,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5287958115183246 [2023-09-01 05:26:07,624 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 404 transitions. [2023-09-01 05:26:07,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 404 transitions. [2023-09-01 05:26:07,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:07,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 404 transitions. [2023-09-01 05:26:07,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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 05:26:07,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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 05:26:07,630 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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 05:26:07,630 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 100 flow. Second operand 4 states and 404 transitions. [2023-09-01 05:26:07,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 274 flow [2023-09-01 05:26:07,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:26:07,633 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 152 flow [2023-09-01 05:26:07,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-09-01 05:26:07,635 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2023-09-01 05:26:07,638 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 152 flow [2023-09-01 05:26:07,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 05:26:07,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:07,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:07,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:26:07,640 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 05:26:07,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:07,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1782039672, now seen corresponding path program 1 times [2023-09-01 05:26:07,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:07,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664247300] [2023-09-01 05:26:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:07,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:07,748 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 05:26:07,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:07,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664247300] [2023-09-01 05:26:07,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664247300] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:07,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:07,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:26:07,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254962381] [2023-09-01 05:26:07,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:07,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:26:07,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:07,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:26:07,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:26:07,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-09-01 05:26:07,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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 05:26:07,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:07,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-09-01 05:26:07,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:07,937 INFO L130 PetriNetUnfolder]: 712/1056 cut-off events. [2023-09-01 05:26:07,938 INFO L131 PetriNetUnfolder]: For 760/780 co-relation queries the response was YES. [2023-09-01 05:26:07,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3299 conditions, 1056 events. 712/1056 cut-off events. For 760/780 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4254 event pairs, 115 based on Foata normal form. 16/1055 useless extension candidates. Maximal degree in co-relation 3286. Up to 405 conditions per place. [2023-09-01 05:26:07,948 INFO L137 encePairwiseOnDemand]: 182/191 looper letters, 47 selfloop transitions, 13 changer transitions 4/66 dead transitions. [2023-09-01 05:26:07,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 66 transitions, 376 flow [2023-09-01 05:26:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:26:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:26:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 503 transitions. [2023-09-01 05:26:07,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5267015706806283 [2023-09-01 05:26:07,955 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 503 transitions. [2023-09-01 05:26:07,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 503 transitions. [2023-09-01 05:26:07,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:07,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 503 transitions. [2023-09-01 05:26:07,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.6) internal successors, (503), 5 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 05:26:07,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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 05:26:07,959 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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 05:26:07,959 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 152 flow. Second operand 5 states and 503 transitions. [2023-09-01 05:26:07,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 66 transitions, 376 flow [2023-09-01 05:26:07,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 66 transitions, 358 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:26:07,966 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 176 flow [2023-09-01 05:26:07,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-09-01 05:26:07,968 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-09-01 05:26:07,968 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 176 flow [2023-09-01 05:26:07,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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 05:26:07,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:07,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:07,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:26:07,970 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 05:26:07,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:07,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1845763206, now seen corresponding path program 1 times [2023-09-01 05:26:07,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:07,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576866001] [2023-09-01 05:26:07,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:07,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:08,144 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 05:26:08,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576866001] [2023-09-01 05:26:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576866001] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:08,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:08,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:26:08,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711516154] [2023-09-01 05:26:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:08,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:26:08,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:08,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:26:08,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:26:08,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-09-01 05:26:08,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 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 05:26:08,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:08,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-09-01 05:26:08,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:08,333 INFO L130 PetriNetUnfolder]: 693/1022 cut-off events. [2023-09-01 05:26:08,333 INFO L131 PetriNetUnfolder]: For 1038/1058 co-relation queries the response was YES. [2023-09-01 05:26:08,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3298 conditions, 1022 events. 693/1022 cut-off events. For 1038/1058 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4145 event pairs, 115 based on Foata normal form. 28/1045 useless extension candidates. Maximal degree in co-relation 3284. Up to 400 conditions per place. [2023-09-01 05:26:08,337 INFO L137 encePairwiseOnDemand]: 182/191 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2023-09-01 05:26:08,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 328 flow [2023-09-01 05:26:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:26:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:26:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 582 transitions. [2023-09-01 05:26:08,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5078534031413613 [2023-09-01 05:26:08,339 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 582 transitions. [2023-09-01 05:26:08,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 582 transitions. [2023-09-01 05:26:08,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:08,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 582 transitions. [2023-09-01 05:26:08,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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 05:26:08,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 05:26:08,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 05:26:08,343 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 176 flow. Second operand 6 states and 582 transitions. [2023-09-01 05:26:08,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 328 flow [2023-09-01 05:26:08,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 273 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:26:08,353 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-09-01 05:26:08,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-09-01 05:26:08,354 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2023-09-01 05:26:08,354 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-09-01 05:26:08,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 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 05:26:08,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:26:08,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:26:08,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:26:08,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:26:08,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:26:08,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:26:08,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:26:08,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:26:08,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:26:08,361 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:26:08,366 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:26:08,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:26:08,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:26:08 BasicIcfg [2023-09-01 05:26:08,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:26:08,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:26:08,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:26:08,370 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:26:08,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:03" (3/4) ... [2023-09-01 05:26:08,373 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:26:08,377 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:26:08,378 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:26:08,378 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:26:08,378 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:26:08,381 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-09-01 05:26:08,382 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 05:26:08,382 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:26:08,382 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:26:08,422 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:26:08,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:26:08,423 INFO L158 Benchmark]: Toolchain (without parser) took 6548.74ms. Allocated memory was 69.2MB in the beginning and 222.3MB in the end (delta: 153.1MB). Free memory was 42.6MB in the beginning and 130.0MB in the end (delta: -87.5MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,423 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 58.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:26:08,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.14ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 39.6MB in the end (delta: 2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.75ms. Allocated memory is still 69.2MB. Free memory was 39.6MB in the beginning and 37.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,424 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,426 INFO L158 Benchmark]: RCFGBuilder took 591.14ms. Allocated memory is still 69.2MB. Free memory was 36.0MB in the beginning and 38.3MB in the end (delta: -2.3MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,427 INFO L158 Benchmark]: TraceAbstraction took 5332.46ms. Allocated memory was 69.2MB in the beginning and 222.3MB in the end (delta: 153.1MB). Free memory was 37.9MB in the beginning and 133.2MB in the end (delta: -95.3MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,427 INFO L158 Benchmark]: Witness Printer took 52.15ms. Allocated memory is still 222.3MB. Free memory was 133.2MB in the beginning and 130.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:08,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 58.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.14ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 39.6MB in the end (delta: 2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.75ms. Allocated memory is still 69.2MB. Free memory was 39.6MB in the beginning and 37.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.14ms. Allocated memory is still 69.2MB. Free memory was 36.0MB in the beginning and 38.3MB in the end (delta: -2.3MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5332.46ms. Allocated memory was 69.2MB in the beginning and 222.3MB in the end (delta: 153.1MB). Free memory was 37.9MB in the beginning and 133.2MB in the end (delta: -95.3MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. * Witness Printer took 52.15ms. Allocated memory is still 222.3MB. Free memory was 133.2MB in the beginning and 130.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 114 PlacesBefore, 41 PlacesAfterwards, 103 TransitionsBefore, 29 TransitionsAfterwards, 3058 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 8009 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3576, independent: 3373, independent conditional: 0, independent unconditional: 3373, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1642, independent: 1606, independent conditional: 0, independent unconditional: 1606, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3576, independent: 1767, independent conditional: 0, independent unconditional: 1767, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 1642, unknown conditional: 0, unknown unconditional: 1642] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 736]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 736]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: 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, 144 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: 5.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 341 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 13 mSDtfsCounter, 341 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=176occurred 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, 0.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 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 05:26:08,455 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