./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_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/mix029_power.oepc_pso.oepc_rmo.oepc_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 bf24bf121ebc3ec235b4f1c2077ea9383a107f5a378f2adee68bd8bbb156b315 --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 05:19:08,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:19:08,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:19:08,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:19:08,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:19:08,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:19:08,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:19:08,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:19:08,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:19:08,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:19:08,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:19:08,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:19:08,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:19:08,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:19:08,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:19:08,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:19:08,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:19:08,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:19:08,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:19:08,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:19:08,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:19:08,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:19:08,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:19:08,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:19:08,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:19:08,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:19:08,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:19:08,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:19:08,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:19:08,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:19:08,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:19:08,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:19:08,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:19:08,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:19:08,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:19:08,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:19:08,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:19:08,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:19:08,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:19:08,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:19:08,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:19:08,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:19:08,631 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:19:08,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:19:08,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:19:08,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:19:08,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:19:08,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:19:08,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:19:08,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:19:08,634 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:19:08,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:19:08,634 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:19:08,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:19:08,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:19:08,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:19:08,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:19:08,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:19:08,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:19:08,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:19:08,636 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:19:08,636 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:19:08,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:19:08,636 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:19:08,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:19:08,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:19:08,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:19:08,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:19:08,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:19:08,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:19:08,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:19:08,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:19:08,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:19:08,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:19:08,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:19:08,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:19:08,638 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:19:08,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:19:08,639 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:19:08,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf24bf121ebc3ec235b4f1c2077ea9383a107f5a378f2adee68bd8bbb156b315 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:19:08,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:19:08,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:19:08,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:19:08,968 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:19:08,969 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:19:08,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-09-01 05:19:10,083 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:19:10,387 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:19:10,387 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-09-01 05:19:10,397 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83a88ae7/86696a4909114a8ca1c7c364945217d8/FLAGb0a4bd3f0 [2023-09-01 05:19:10,415 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83a88ae7/86696a4909114a8ca1c7c364945217d8 [2023-09-01 05:19:10,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:19:10,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:19:10,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:19:10,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:19:10,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:19:10,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7d11bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10, skipping insertion in model container [2023-09-01 05:19:10,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:19:10,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:19:10,648 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/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2023-09-01 05:19:10,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:19:10,843 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:19:10,854 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/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2023-09-01 05:19:10,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:19:10,936 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:19:10,937 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:19:10,943 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:19:10,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10 WrapperNode [2023-09-01 05:19:10,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:19:10,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:19:10,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:19:10,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:19:10,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,985 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2023-09-01 05:19:10,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:19:10,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:19:10,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:19:10,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:19:10,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:10,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:11,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:11,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:11,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:11,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:11,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:19:11,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:19:11,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:19:11,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:19:11,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (1/1) ... [2023-09-01 05:19:11,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:19:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:19:11,066 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 05:19:11,086 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 05:19:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:19:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:19:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:19:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:19:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:19:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:19:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:19:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:19:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:19:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:19:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:19:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:19:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:19:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:19:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:19:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:19:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:19:11,099 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 05:19:11,276 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:19:11,278 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:19:11,616 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:19:11,760 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:19:11,760 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:19:11,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:19:11 BoogieIcfgContainer [2023-09-01 05:19:11,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:19:11,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:19:11,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:19:11,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:19:11,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:19:10" (1/3) ... [2023-09-01 05:19:11,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4537ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:19:11, skipping insertion in model container [2023-09-01 05:19:11,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:19:10" (2/3) ... [2023-09-01 05:19:11,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4537ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:19:11, skipping insertion in model container [2023-09-01 05:19:11,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:19:11" (3/3) ... [2023-09-01 05:19:11,769 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-09-01 05:19:11,774 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:19:11,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:19:11,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:19:11,781 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:19:11,847 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:19:11,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2023-09-01 05:19:11,941 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-09-01 05:19:11,942 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:19:11,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-09-01 05:19:11,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2023-09-01 05:19:11,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2023-09-01 05:19:11,954 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:19:11,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 132 transitions, 276 flow [2023-09-01 05:19:11,965 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 132 transitions, 276 flow [2023-09-01 05:19:11,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 276 flow [2023-09-01 05:19:12,009 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-09-01 05:19:12,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:19:12,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-09-01 05:19:12,013 INFO L119 LiptonReduction]: Number of co-enabled transitions 4002 [2023-09-01 05:19:15,317 INFO L134 LiptonReduction]: Checked pairs total: 16102 [2023-09-01 05:19:15,317 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-09-01 05:19:15,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:19:15,362 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;@38d48624, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:19:15,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:19:15,371 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-09-01 05:19:15,371 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:19:15,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:19:15,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:19:15,384 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 05:19:15,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:19:15,388 INFO L85 PathProgramCache]: Analyzing trace with hash 81115678, now seen corresponding path program 1 times [2023-09-01 05:19:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:19:15,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112333300] [2023-09-01 05:19:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:19:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:19:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:19:15,632 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 05:19:15,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:19:15,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112333300] [2023-09-01 05:19:15,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112333300] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:19:15,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:19:15,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:19:15,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976313977] [2023-09-01 05:19:15,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:19:15,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:19:15,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:19:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:19:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:19:15,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 241 [2023-09-01 05:19:15,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 05:19:15,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:19:15,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 241 [2023-09-01 05:19:15,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:19:17,192 INFO L130 PetriNetUnfolder]: 12225/16913 cut-off events. [2023-09-01 05:19:17,193 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2023-09-01 05:19:17,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34065 conditions, 16913 events. 12225/16913 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 95265 event pairs, 3437 based on Foata normal form. 0/12760 useless extension candidates. Maximal degree in co-relation 34053. Up to 14728 conditions per place. [2023-09-01 05:19:17,302 INFO L137 encePairwiseOnDemand]: 227/241 looper letters, 51 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-09-01 05:19:17,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 253 flow [2023-09-01 05:19:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:19:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:19:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-09-01 05:19:17,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5435684647302904 [2023-09-01 05:19:17,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-09-01 05:19:17,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-09-01 05:19:17,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:19:17,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-09-01 05:19:17,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 05:19:17,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 05:19:17,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 05:19:17,334 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 3 states and 393 transitions. [2023-09-01 05:19:17,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 253 flow [2023-09-01 05:19:17,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:19:17,342 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 129 flow [2023-09-01 05:19:17,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-09-01 05:19:17,347 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-09-01 05:19:17,349 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 129 flow [2023-09-01 05:19:17,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 05:19:17,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:19:17,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:19:17,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:19:17,350 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 05:19:17,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:19:17,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1331974827, now seen corresponding path program 1 times [2023-09-01 05:19:17,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:19:17,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788721877] [2023-09-01 05:19:17,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:19:17,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:19:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:19:17,467 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 05:19:17,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:19:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788721877] [2023-09-01 05:19:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788721877] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:19:17,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:19:17,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:19:17,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97648999] [2023-09-01 05:19:17,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:19:17,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:19:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:19:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:19:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:19:17,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 241 [2023-09-01 05:19:17,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:19:17,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:19:17,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 241 [2023-09-01 05:19:17,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:19:18,384 INFO L130 PetriNetUnfolder]: 7784/10748 cut-off events. [2023-09-01 05:19:18,384 INFO L131 PetriNetUnfolder]: For 609/609 co-relation queries the response was YES. [2023-09-01 05:19:18,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25982 conditions, 10748 events. 7784/10748 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 57382 event pairs, 2133 based on Foata normal form. 0/9292 useless extension candidates. Maximal degree in co-relation 25971. Up to 8562 conditions per place. [2023-09-01 05:19:18,434 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-09-01 05:19:18,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 261 flow [2023-09-01 05:19:18,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:19:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:19:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2023-09-01 05:19:18,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103734439834025 [2023-09-01 05:19:18,436 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2023-09-01 05:19:18,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2023-09-01 05:19:18,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:19:18,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2023-09-01 05:19:18,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 05:19:18,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 05:19:18,440 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 05:19:18,440 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 129 flow. Second operand 4 states and 492 transitions. [2023-09-01 05:19:18,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 261 flow [2023-09-01 05:19:18,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 56 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:19:18,442 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 118 flow [2023-09-01 05:19:18,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-09-01 05:19:18,443 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-09-01 05:19:18,443 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 118 flow [2023-09-01 05:19:18,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:19:18,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:19:18,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:19:18,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:19:18,444 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 05:19:18,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:19:18,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1331974826, now seen corresponding path program 1 times [2023-09-01 05:19:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:19:18,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458226215] [2023-09-01 05:19:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:19:18,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:19:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:19:18,523 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 05:19:18,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:19:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458226215] [2023-09-01 05:19:18,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458226215] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:19:18,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:19:18,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:19:18,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220484095] [2023-09-01 05:19:18,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:19:18,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:19:18,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:19:18,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:19:18,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:19:18,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 241 [2023-09-01 05:19:18,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:19:18,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:19:18,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 241 [2023-09-01 05:19:18,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:19:19,302 INFO L130 PetriNetUnfolder]: 5330/7403 cut-off events. [2023-09-01 05:19:19,302 INFO L131 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2023-09-01 05:19:19,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17653 conditions, 7403 events. 5330/7403 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 38045 event pairs, 1569 based on Foata normal form. 0/7079 useless extension candidates. Maximal degree in co-relation 17641. Up to 2826 conditions per place. [2023-09-01 05:19:19,350 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 64 selfloop transitions, 9 changer transitions 0/77 dead transitions. [2023-09-01 05:19:19,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 77 transitions, 362 flow [2023-09-01 05:19:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:19:19,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:19:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 513 transitions. [2023-09-01 05:19:19,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5321576763485477 [2023-09-01 05:19:19,353 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 513 transitions. [2023-09-01 05:19:19,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 513 transitions. [2023-09-01 05:19:19,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:19:19,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 513 transitions. [2023-09-01 05:19:19,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:19:19,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 05:19:19,357 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 05:19:19,357 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 118 flow. Second operand 4 states and 513 transitions. [2023-09-01 05:19:19,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 77 transitions, 362 flow [2023-09-01 05:19:19,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 77 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:19:19,362 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 170 flow [2023-09-01 05:19:19,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-09-01 05:19:19,363 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-09-01 05:19:19,364 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 170 flow [2023-09-01 05:19:19,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:19:19,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:19:19,365 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 05:19:19,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:19:19,365 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 05:19:19,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:19:19,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1247772155, now seen corresponding path program 1 times [2023-09-01 05:19:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:19:19,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629912412] [2023-09-01 05:19:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:19:19,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:19:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:19:19,447 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 05:19:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:19:19,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629912412] [2023-09-01 05:19:19,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629912412] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:19:19,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:19:19,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:19:19,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172590949] [2023-09-01 05:19:19,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:19:19,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:19:19,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:19:19,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:19:19,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:19:19,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 241 [2023-09-01 05:19:19,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 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 05:19:19,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:19:19,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 241 [2023-09-01 05:19:19,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:19:20,190 INFO L130 PetriNetUnfolder]: 4919/6761 cut-off events. [2023-09-01 05:19:20,191 INFO L131 PetriNetUnfolder]: For 4056/4056 co-relation queries the response was YES. [2023-09-01 05:19:20,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18367 conditions, 6761 events. 4919/6761 cut-off events. For 4056/4056 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 34173 event pairs, 1514 based on Foata normal form. 0/6698 useless extension candidates. Maximal degree in co-relation 18354. Up to 2826 conditions per place. [2023-09-01 05:19:20,217 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 75 selfloop transitions, 13 changer transitions 4/96 dead transitions. [2023-09-01 05:19:20,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 96 transitions, 492 flow [2023-09-01 05:19:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:19:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:19:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2023-09-01 05:19:20,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5319502074688797 [2023-09-01 05:19:20,219 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2023-09-01 05:19:20,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2023-09-01 05:19:20,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:19:20,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2023-09-01 05:19:20,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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 05:19:20,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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 05:19:20,223 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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 05:19:20,223 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 170 flow. Second operand 5 states and 641 transitions. [2023-09-01 05:19:20,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 96 transitions, 492 flow [2023-09-01 05:19:20,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 474 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:19:20,230 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 194 flow [2023-09-01 05:19:20,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-09-01 05:19:20,230 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-09-01 05:19:20,230 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 194 flow [2023-09-01 05:19:20,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 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 05:19:20,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:19:20,231 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, 1] [2023-09-01 05:19:20,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:19:20,231 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 05:19:20,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:19:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1154997607, now seen corresponding path program 1 times [2023-09-01 05:19:20,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:19:20,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482958052] [2023-09-01 05:19:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:19:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:19:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:19:20,316 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 05:19:20,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:19:20,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482958052] [2023-09-01 05:19:20,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482958052] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:19:20,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:19:20,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:19:20,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564414239] [2023-09-01 05:19:20,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:19:20,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:19:20,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:19:20,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:19:20,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:19:20,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 241 [2023-09-01 05:19:20,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 05:19:20,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:19:20,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 241 [2023-09-01 05:19:20,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:19:20,857 INFO L130 PetriNetUnfolder]: 4884/6701 cut-off events. [2023-09-01 05:19:20,857 INFO L131 PetriNetUnfolder]: For 4927/4927 co-relation queries the response was YES. [2023-09-01 05:19:20,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18643 conditions, 6701 events. 4884/6701 cut-off events. For 4927/4927 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 33903 event pairs, 1514 based on Foata normal form. 20/6678 useless extension candidates. Maximal degree in co-relation 18629. Up to 2826 conditions per place. [2023-09-01 05:19:20,875 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2023-09-01 05:19:20,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 88 transitions, 444 flow [2023-09-01 05:19:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:19:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:19:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 742 transitions. [2023-09-01 05:19:20,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131396957123098 [2023-09-01 05:19:20,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 742 transitions. [2023-09-01 05:19:20,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 742 transitions. [2023-09-01 05:19:20,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:19:20,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 742 transitions. [2023-09-01 05:19:20,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 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 05:19:20,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 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 05:19:20,887 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 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 05:19:20,887 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 194 flow. Second operand 6 states and 742 transitions. [2023-09-01 05:19:20,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 88 transitions, 444 flow [2023-09-01 05:19:20,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 88 transitions, 389 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:19:20,993 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-09-01 05:19:20,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-09-01 05:19:20,995 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-09-01 05:19:20,995 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-09-01 05:19:20,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 05:19:21,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:19:21,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:19:21,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:19:21,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:19:21,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:19:21,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:19:21,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:19:21,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:19:21,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:19:21,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:19:21,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:19:21,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:19:21,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:19:21,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:19:21,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:19:21,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:19:21,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:19:21,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:19:21,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:19:21,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:19:21,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:19:21,012 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:19:21,018 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:19:21,018 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:19:21,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:19:21 BasicIcfg [2023-09-01 05:19:21,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:19:21,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:19:21,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:19:21,021 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:19:21,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:19:11" (3/4) ... [2023-09-01 05:19:21,023 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:19:21,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:19:21,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:19:21,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:19:21,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:19:21,032 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-09-01 05:19:21,033 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:19:21,033 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:19:21,033 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:19:21,072 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:19:21,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:19:21,073 INFO L158 Benchmark]: Toolchain (without parser) took 10651.91ms. Allocated memory was 69.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 44.9MB in the beginning and 473.2MB in the end (delta: -428.3MB). Peak memory consumption was 898.0MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,073 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:19:21,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.78ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 37.6MB in the end (delta: 7.2MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.71ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 35.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,075 INFO L158 Benchmark]: Boogie Preprocessor took 32.35ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 32.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,075 INFO L158 Benchmark]: RCFGBuilder took 743.71ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 30.9MB in the end (delta: 2.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,076 INFO L158 Benchmark]: TraceAbstraction took 9256.92ms. Allocated memory was 69.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 30.5MB in the beginning and 477.4MB in the end (delta: -446.9MB). Peak memory consumption was 876.5MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,076 INFO L158 Benchmark]: Witness Printer took 51.18ms. Allocated memory is still 1.4GB. Free memory was 477.4MB in the beginning and 473.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:19:21,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.78ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 37.6MB in the end (delta: 7.2MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.71ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 35.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.35ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 32.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 743.71ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 30.9MB in the end (delta: 2.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9256.92ms. Allocated memory was 69.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 30.5MB in the beginning and 477.4MB in the end (delta: -446.9MB). Peak memory consumption was 876.5MB. Max. memory is 16.1GB. * Witness Printer took 51.18ms. Allocated memory is still 1.4GB. Free memory was 477.4MB in the beginning and 473.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 143 PlacesBefore, 50 PlacesAfterwards, 132 TransitionsBefore, 38 TransitionsAfterwards, 4002 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 16102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5592, independent: 5219, independent conditional: 0, independent unconditional: 5219, dependent: 373, dependent conditional: 0, dependent unconditional: 373, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2107, independent: 2046, independent conditional: 0, independent unconditional: 2046, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5592, independent: 3173, independent conditional: 0, independent unconditional: 3173, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 2107, unknown conditional: 0, unknown unconditional: 2107] , Statistics on independence cache: Total cache size (in pairs): 266, Positive cache size: 236, Positive conditional cache size: 0, Positive unconditional cache size: 236, 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: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: 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, 180 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: 9.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 302 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 276 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 7 mSDtfsCounter, 456 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=194occurred 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, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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 05:19:21,099 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