./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.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/mix030_power.opt_pso.opt_rmo.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 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 --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 12:59:09,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:59:09,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:59:09,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:59:09,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:59:09,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:59:09,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:59:09,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:59:09,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:59:09,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:59:09,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:59:09,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:59:09,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:59:09,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:59:09,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:59:09,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:59:09,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:59:09,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:59:09,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:59:09,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:59:09,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:59:09,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:59:09,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:59:09,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:59:09,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:59:09,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:59:09,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:59:09,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:59:09,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:59:09,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:59:09,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:59:09,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:59:09,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:59:09,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:59:09,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:59:09,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:59:09,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:59:09,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:59:09,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:59:09,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:59:09,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:59:09,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:59:09,473 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:59:09,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:59:09,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:59:09,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:59:09,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:59:09,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:59:09,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:59:09,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:59:09,476 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:59:09,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:59:09,477 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:59:09,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:59:09,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:59:09,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:59:09,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:59:09,479 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:59:09,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:59:09,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:59:09,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:59:09,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:59:09,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:09,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:59:09,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:59:09,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:59:09,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:59:09,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:59:09,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:59:09,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:59:09,481 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:59:09,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:59:09,481 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:59:09,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:59:09,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:59:09,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:59:09,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:59:09,726 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:59:09,727 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:59:09,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2023-08-30 12:59:10,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:59:10,836 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:59:10,836 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2023-08-30 12:59:10,846 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/099d15841/6fb62e5e41b847169ec81520f4f2e4bd/FLAG7ed4c41c4 [2023-08-30 12:59:10,854 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/099d15841/6fb62e5e41b847169ec81520f4f2e4bd [2023-08-30 12:59:10,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:59:10,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:59:10,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:10,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:59:10,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:59:10,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:10" (1/1) ... [2023-08-30 12:59:10,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3698c759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:10, skipping insertion in model container [2023-08-30 12:59:10,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:10" (1/1) ... [2023-08-30 12:59:10,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:59:10,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:59:10,978 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/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2023-08-30 12:59:11,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:59:11,163 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:59:11,171 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/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2023-08-30 12:59:11,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:59:11,254 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:59:11,254 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:59:11,259 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:59:11,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11 WrapperNode [2023-08-30 12:59:11,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:11,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:59:11,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:59:11,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:59:11,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,320 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 162 [2023-08-30 12:59:11,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:59:11,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:59:11,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:59:11,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:59:11,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:59:11,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:59:11,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:59:11,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:59:11,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (1/1) ... [2023-08-30 12:59:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:11,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:59:11,388 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 12:59:11,393 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 12:59:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:59:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:59:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:59:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:59:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:59:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:59:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:59:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:59:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:59:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:59:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:59:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 12:59:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 12:59:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:59:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:59:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:59:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:59:11,425 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 12:59:11,558 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:59:11,559 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:59:11,801 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:59:11,893 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:59:11,893 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:59:11,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:11 BoogieIcfgContainer [2023-08-30 12:59:11,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:59:11,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:59:11,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:59:11,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:59:11,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:59:10" (1/3) ... [2023-08-30 12:59:11,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bbc1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:59:11, skipping insertion in model container [2023-08-30 12:59:11,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:11" (2/3) ... [2023-08-30 12:59:11,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bbc1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:59:11, skipping insertion in model container [2023-08-30 12:59:11,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:11" (3/3) ... [2023-08-30 12:59:11,909 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.opt_pso.opt_rmo.opt.i [2023-08-30 12:59:11,915 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:59:11,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:59:11,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 12:59:11,921 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:59:11,965 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:59:11,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2023-08-30 12:59:12,044 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2023-08-30 12:59:12,044 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:12,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 12:59:12,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2023-08-30 12:59:12,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2023-08-30 12:59:12,055 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:59:12,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 130 transitions, 272 flow [2023-08-30 12:59:12,063 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 130 transitions, 272 flow [2023-08-30 12:59:12,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 272 flow [2023-08-30 12:59:12,081 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2023-08-30 12:59:12,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:12,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 12:59:12,084 INFO L119 LiptonReduction]: Number of co-enabled transitions 3844 [2023-08-30 12:59:15,890 INFO L134 LiptonReduction]: Checked pairs total: 13962 [2023-08-30 12:59:15,891 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-30 12:59:15,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:59:15,903 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;@364f0b00, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:59:15,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 12:59:15,905 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 12:59:15,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:15,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:15,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 12:59:15,906 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 12:59:15,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash 542663490, now seen corresponding path program 1 times [2023-08-30 12:59:15,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:15,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039031259] [2023-08-30 12:59:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:15,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:16,113 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 12:59:16,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:16,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039031259] [2023-08-30 12:59:16,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039031259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:16,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:16,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:59:16,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405290839] [2023-08-30 12:59:16,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:59:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:59:16,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:59:16,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 237 [2023-08-30 12:59:16,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 12:59:16,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:16,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 237 [2023-08-30 12:59:16,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:16,918 INFO L130 PetriNetUnfolder]: 6339/8742 cut-off events. [2023-08-30 12:59:16,918 INFO L131 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2023-08-30 12:59:16,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17586 conditions, 8742 events. 6339/8742 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 46541 event pairs, 6339 based on Foata normal form. 0/6675 useless extension candidates. Maximal degree in co-relation 17574. Up to 8588 conditions per place. [2023-08-30 12:59:16,956 INFO L137 encePairwiseOnDemand]: 232/237 looper letters, 25 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-08-30 12:59:16,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 31 transitions, 126 flow [2023-08-30 12:59:16,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:59:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:59:16,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-08-30 12:59:16,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4978902953586498 [2023-08-30 12:59:16,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-08-30 12:59:16,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-08-30 12:59:16,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:16,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-08-30 12:59:16,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 12:59:16,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:16,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:16,975 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 82 flow. Second operand 3 states and 354 transitions. [2023-08-30 12:59:16,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 31 transitions, 126 flow [2023-08-30 12:59:16,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:59:16,980 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 72 flow [2023-08-30 12:59:16,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, 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=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-08-30 12:59:16,983 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-08-30 12:59:16,984 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 72 flow [2023-08-30 12:59:16,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 12:59:16,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:16,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 12:59:16,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:59:16,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:59:16,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:16,985 INFO L85 PathProgramCache]: Analyzing trace with hash 542663491, now seen corresponding path program 1 times [2023-08-30 12:59:16,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:16,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631711400] [2023-08-30 12:59:16,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:16,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:17,024 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 12:59:17,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:17,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631711400] [2023-08-30 12:59:17,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631711400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:17,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:17,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:59:17,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092953192] [2023-08-30 12:59:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:17,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:59:17,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:59:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:59:17,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 237 [2023-08-30 12:59:17,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 12:59:17,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:17,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 237 [2023-08-30 12:59:17,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:17,552 INFO L130 PetriNetUnfolder]: 4063/5740 cut-off events. [2023-08-30 12:59:17,552 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:17,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11606 conditions, 5740 events. 4063/5740 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 29998 event pairs, 1011 based on Foata normal form. 0/4750 useless extension candidates. Maximal degree in co-relation 11600. Up to 4849 conditions per place. [2023-08-30 12:59:17,571 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 41 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-08-30 12:59:17,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 51 transitions, 210 flow [2023-08-30 12:59:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:59:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:59:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2023-08-30 12:59:17,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5260196905766527 [2023-08-30 12:59:17,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2023-08-30 12:59:17,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2023-08-30 12:59:17,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:17,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2023-08-30 12:59:17,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 12:59:17,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:17,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:17,577 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 72 flow. Second operand 3 states and 374 transitions. [2023-08-30 12:59:17,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 51 transitions, 210 flow [2023-08-30 12:59:17,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:59:17,578 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 110 flow [2023-08-30 12:59:17,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=41, 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=110, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-08-30 12:59:17,579 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-08-30 12:59:17,579 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 110 flow [2023-08-30 12:59:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 12:59:17,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:17,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:17,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:59:17,580 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 12:59:17,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:17,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1179822785, now seen corresponding path program 1 times [2023-08-30 12:59:17,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:17,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617445430] [2023-08-30 12:59:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:17,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:17,677 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 12:59:17,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:17,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617445430] [2023-08-30 12:59:17,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617445430] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:17,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:17,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:59:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489909639] [2023-08-30 12:59:17,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:17,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:59:17,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:59:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:59:17,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 237 [2023-08-30 12:59:17,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 12:59:17,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:17,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 237 [2023-08-30 12:59:17,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:18,023 INFO L130 PetriNetUnfolder]: 2586/3713 cut-off events. [2023-08-30 12:59:18,024 INFO L131 PetriNetUnfolder]: For 344/344 co-relation queries the response was YES. [2023-08-30 12:59:18,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9068 conditions, 3713 events. 2586/3713 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 18322 event pairs, 613 based on Foata normal form. 0/3447 useless extension candidates. Maximal degree in co-relation 9060. Up to 1477 conditions per place. [2023-08-30 12:59:18,036 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 55 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2023-08-30 12:59:18,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 69 transitions, 324 flow [2023-08-30 12:59:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:59:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:59:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 500 transitions. [2023-08-30 12:59:18,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5274261603375527 [2023-08-30 12:59:18,038 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 500 transitions. [2023-08-30 12:59:18,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 500 transitions. [2023-08-30 12:59:18,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:18,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 500 transitions. [2023-08-30 12:59:18,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 12:59:18,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:18,042 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:18,042 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 110 flow. Second operand 4 states and 500 transitions. [2023-08-30 12:59:18,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 69 transitions, 324 flow [2023-08-30 12:59:18,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 69 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:59:18,044 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 163 flow [2023-08-30 12:59:18,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 12:59:18,045 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-08-30 12:59:18,045 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 163 flow [2023-08-30 12:59:18,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 12:59:18,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:18,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:18,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:59:18,046 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 12:59:18,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1047639344, now seen corresponding path program 1 times [2023-08-30 12:59:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:18,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310470163] [2023-08-30 12:59:18,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:18,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:18,121 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 12:59:18,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:18,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310470163] [2023-08-30 12:59:18,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310470163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:18,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:59:18,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59264625] [2023-08-30 12:59:18,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:18,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:59:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:18,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:59:18,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:59:18,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 237 [2023-08-30 12:59:18,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 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 12:59:18,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:18,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 237 [2023-08-30 12:59:18,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:18,497 INFO L130 PetriNetUnfolder]: 2307/3272 cut-off events. [2023-08-30 12:59:18,497 INFO L131 PetriNetUnfolder]: For 2166/2166 co-relation queries the response was YES. [2023-08-30 12:59:18,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8910 conditions, 3272 events. 2307/3272 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 15778 event pairs, 569 based on Foata normal form. 0/3192 useless extension candidates. Maximal degree in co-relation 8900. Up to 1345 conditions per place. [2023-08-30 12:59:18,513 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 63 selfloop transitions, 13 changer transitions 4/85 dead transitions. [2023-08-30 12:59:18,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 85 transitions, 443 flow [2023-08-30 12:59:18,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:59:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:59:18,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2023-08-30 12:59:18,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5265822784810127 [2023-08-30 12:59:18,518 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2023-08-30 12:59:18,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2023-08-30 12:59:18,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:18,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2023-08-30 12:59:18,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 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 12:59:18,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:18,523 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:18,523 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 163 flow. Second operand 5 states and 624 transitions. [2023-08-30 12:59:18,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 85 transitions, 443 flow [2023-08-30 12:59:18,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 425 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 12:59:18,530 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 187 flow [2023-08-30 12:59:18,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-08-30 12:59:18,531 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-08-30 12:59:18,531 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 187 flow [2023-08-30 12:59:18,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 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 12:59:18,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:18,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:18,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:59:18,533 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 12:59:18,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:18,533 INFO L85 PathProgramCache]: Analyzing trace with hash -310948263, now seen corresponding path program 1 times [2023-08-30 12:59:18,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:18,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421008853] [2023-08-30 12:59:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:18,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:18,634 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 12:59:18,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:18,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421008853] [2023-08-30 12:59:18,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421008853] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:18,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:18,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:59:18,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479888835] [2023-08-30 12:59:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:59:18,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:59:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:59:18,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 237 [2023-08-30 12:59:18,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 12:59:18,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:18,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 237 [2023-08-30 12:59:18,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:19,049 INFO L130 PetriNetUnfolder]: 2280/3225 cut-off events. [2023-08-30 12:59:19,049 INFO L131 PetriNetUnfolder]: For 2700/2700 co-relation queries the response was YES. [2023-08-30 12:59:19,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9011 conditions, 3225 events. 2280/3225 cut-off events. For 2700/2700 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 15542 event pairs, 569 based on Foata normal form. 16/3177 useless extension candidates. Maximal degree in co-relation 9000. Up to 1345 conditions per place. [2023-08-30 12:59:19,056 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2023-08-30 12:59:19,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 77 transitions, 395 flow [2023-08-30 12:59:19,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:59:19,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:59:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 724 transitions. [2023-08-30 12:59:19,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509142053445851 [2023-08-30 12:59:19,059 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 724 transitions. [2023-08-30 12:59:19,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 724 transitions. [2023-08-30 12:59:19,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:19,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 724 transitions. [2023-08-30 12:59:19,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 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 12:59:19,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:19,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:19,063 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 187 flow. Second operand 6 states and 724 transitions. [2023-08-30 12:59:19,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 77 transitions, 395 flow [2023-08-30 12:59:19,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 77 transitions, 340 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 12:59:19,107 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-08-30 12:59:19,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-08-30 12:59:19,108 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-30 12:59:19,108 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-08-30 12:59:19,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 12:59:19,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 12:59:19,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 12:59:19,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 12:59:19,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 12:59:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 12:59:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 12:59:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 12:59:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 12:59:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 12:59:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 12:59:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 12:59:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 12:59:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 12:59:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 12:59:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 12:59:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 12:59:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 12:59:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 12:59:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 12:59:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 12:59:19,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 12:59:19,115 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 12:59:19,118 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:59:19,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:59:19,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:59:19 BasicIcfg [2023-08-30 12:59:19,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:59:19,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:59:19,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:59:19,121 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:59:19,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:11" (3/4) ... [2023-08-30 12:59:19,123 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:59:19,126 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:59:19,126 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:59:19,126 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:59:19,126 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 12:59:19,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2023-08-30 12:59:19,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 12:59:19,130 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 12:59:19,130 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:59:19,153 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:59:19,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:59:19,154 INFO L158 Benchmark]: Toolchain (without parser) took 8296.90ms. Allocated memory was 107.0MB in the beginning and 947.9MB in the end (delta: 841.0MB). Free memory was 84.9MB in the beginning and 579.8MB in the end (delta: -494.9MB). Peak memory consumption was 346.4MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,154 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:59:19,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.53ms. Allocated memory is still 107.0MB. Free memory was 84.5MB in the beginning and 61.2MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.85ms. Allocated memory is still 107.0MB. Free memory was 60.9MB in the beginning and 85.2MB in the end (delta: -24.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,155 INFO L158 Benchmark]: Boogie Preprocessor took 40.05ms. Allocated memory is still 107.0MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,155 INFO L158 Benchmark]: RCFGBuilder took 529.43ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 44.8MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,155 INFO L158 Benchmark]: TraceAbstraction took 7215.66ms. Allocated memory was 107.0MB in the beginning and 947.9MB in the end (delta: 841.0MB). Free memory was 83.3MB in the beginning and 584.0MB in the end (delta: -500.8MB). Peak memory consumption was 345.0MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,155 INFO L158 Benchmark]: Witness Printer took 32.40ms. Allocated memory is still 947.9MB. Free memory was 584.0MB in the beginning and 579.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:59:19,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.53ms. Allocated memory is still 107.0MB. Free memory was 84.5MB in the beginning and 61.2MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.85ms. Allocated memory is still 107.0MB. Free memory was 60.9MB in the beginning and 85.2MB in the end (delta: -24.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.05ms. Allocated memory is still 107.0MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.43ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 44.8MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7215.66ms. Allocated memory was 107.0MB in the beginning and 947.9MB in the end (delta: 841.0MB). Free memory was 83.3MB in the beginning and 584.0MB in the end (delta: -500.8MB). Peak memory consumption was 345.0MB. Max. memory is 16.1GB. * Witness Printer took 32.40ms. Allocated memory is still 947.9MB. Free memory was 584.0MB in the beginning and 579.8MB 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: 3.8s, 141 PlacesBefore, 48 PlacesAfterwards, 130 TransitionsBefore, 35 TransitionsAfterwards, 3844 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 103 TotalNumberOfCompositions, 13962 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5538, independent: 5185, independent conditional: 0, independent unconditional: 5185, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2017, independent: 1953, independent conditional: 0, independent unconditional: 1953, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5538, independent: 3232, independent conditional: 0, independent unconditional: 3232, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 2017, unknown conditional: 0, unknown unconditional: 2017] , Statistics on independence cache: Total cache size (in pairs): 264, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: 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, 177 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: 7.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 14 mSDtfsCounter, 344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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 12:59:19,174 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