./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix036_power.opt_rmo.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/mix036_power.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 f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:43:18,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:43:18,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:43:18,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:43:18,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:43:18,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:43:18,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:43:18,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:43:18,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:43:18,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:43:18,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:43:18,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:43:18,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:43:18,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:43:18,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:43:18,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:43:18,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:43:18,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:43:18,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:43:18,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:43:18,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:43:18,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:43:18,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:43:18,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:43:18,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:43:18,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:43:18,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:43:18,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:43:18,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:43:18,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:43:18,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:43:18,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:43:18,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:43:18,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:43:18,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:43:18,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:43:18,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:43:18,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:43:18,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:43:18,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:43:18,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:43:18,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:43:18,757 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:43:18,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:43:18,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:43:18,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:43:18,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:43:18,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:43:18,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:43:18,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:43:18,760 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:43:18,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:43:18,761 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:43:18,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:43:18,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:43:18,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:43:18,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:43:18,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:43:18,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:43:18,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:43:18,763 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:43:18,764 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:43:18,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:43:18,768 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:43:18,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:43:18,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:43:18,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:43:18,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:43:18,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:43:18,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:43:18,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:43:18,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:43:18,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:43:18,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:43:18,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:43:18,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:43:18,772 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:43:18,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:43:18,772 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:43:18,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:43:19,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:43:19,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:43:19,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:43:19,074 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:43:19,075 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:43:19,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix036_power.opt_rmo.opt.i [2023-08-30 08:43:20,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:43:20,612 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:43:20,614 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036_power.opt_rmo.opt.i [2023-08-30 08:43:20,638 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00f951d9/673cd2b2985c4f6bb7d6a68a82a082c1/FLAGc4289b135 [2023-08-30 08:43:20,658 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00f951d9/673cd2b2985c4f6bb7d6a68a82a082c1 [2023-08-30 08:43:20,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:43:20,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:43:20,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:43:20,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:43:20,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:43:20,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:43:20" (1/1) ... [2023-08-30 08:43:20,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4df5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:20, skipping insertion in model container [2023-08-30 08:43:20,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:43:20" (1/1) ... [2023-08-30 08:43:20,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:43:20,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:43:20,912 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/mix036_power.opt_rmo.opt.i[958,971] [2023-08-30 08:43:21,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:43:21,119 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:43:21,132 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/mix036_power.opt_rmo.opt.i[958,971] [2023-08-30 08:43:21,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:43:21,205 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:43:21,205 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:43:21,211 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:43:21,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21 WrapperNode [2023-08-30 08:43:21,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:43:21,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:43:21,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:43:21,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:43:21,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,264 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2023-08-30 08:43:21,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:43:21,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:43:21,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:43:21,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:43:21,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,306 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:43:21,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:43:21,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:43:21,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:43:21,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (1/1) ... [2023-08-30 08:43:21,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:43:21,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:43:21,346 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 08:43:21,368 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 08:43:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:43:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:43:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:43:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:43:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:43:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:43:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:43:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:43:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:43:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:43:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:43:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:43:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:43:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:43:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:43:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:43:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:43:21,385 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 08:43:21,581 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:43:21,583 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:43:21,911 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:43:22,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:43:22,043 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:43:22,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:43:22 BoogieIcfgContainer [2023-08-30 08:43:22,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:43:22,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:43:22,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:43:22,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:43:22,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:43:20" (1/3) ... [2023-08-30 08:43:22,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bbad3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:43:22, skipping insertion in model container [2023-08-30 08:43:22,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:21" (2/3) ... [2023-08-30 08:43:22,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bbad3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:43:22, skipping insertion in model container [2023-08-30 08:43:22,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:43:22" (3/3) ... [2023-08-30 08:43:22,054 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_power.opt_rmo.opt.i [2023-08-30 08:43:22,061 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:43:22,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:43:22,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:43:22,070 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:43:22,151 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:43:22,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2023-08-30 08:43:22,252 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2023-08-30 08:43:22,252 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:22,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 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. 0/124 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 08:43:22,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 138 transitions, 296 flow [2023-08-30 08:43:22,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 134 transitions, 280 flow [2023-08-30 08:43:22,281 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:43:22,308 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 134 transitions, 280 flow [2023-08-30 08:43:22,310 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 134 transitions, 280 flow [2023-08-30 08:43:22,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 280 flow [2023-08-30 08:43:22,345 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2023-08-30 08:43:22,346 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:22,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 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. 0/124 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 08:43:22,349 INFO L119 LiptonReduction]: Number of co-enabled transitions 3812 [2023-08-30 08:43:26,326 INFO L134 LiptonReduction]: Checked pairs total: 12524 [2023-08-30 08:43:26,327 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-08-30 08:43:26,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:43:26,345 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;@24cf552f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:43:26,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:43:26,348 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:43:26,348 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:26,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:26,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:43:26,349 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 08:43:26,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:26,353 INFO L85 PathProgramCache]: Analyzing trace with hash 545435975, now seen corresponding path program 1 times [2023-08-30 08:43:26,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:26,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153235681] [2023-08-30 08:43:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:26,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:26,627 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 08:43:26,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:26,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153235681] [2023-08-30 08:43:26,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153235681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:26,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:26,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:43:26,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447916157] [2023-08-30 08:43:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:26,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:43:26,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:43:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:43:26,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 244 [2023-08-30 08:43:26,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 08:43:26,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:26,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 244 [2023-08-30 08:43:26,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:27,847 INFO L130 PetriNetUnfolder]: 7579/10542 cut-off events. [2023-08-30 08:43:27,849 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2023-08-30 08:43:27,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21026 conditions, 10542 events. 7579/10542 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 56882 event pairs, 7579 based on Foata normal form. 0/8311 useless extension candidates. Maximal degree in co-relation 21014. Up to 10228 conditions per place. [2023-08-30 08:43:27,929 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 26 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-30 08:43:27,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 126 flow [2023-08-30 08:43:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:43:27,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:43:27,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2023-08-30 08:43:27,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.505464480874317 [2023-08-30 08:43:27,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2023-08-30 08:43:27,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2023-08-30 08:43:27,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:27,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2023-08-30 08:43:27,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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 08:43:27,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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 08:43:27,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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 08:43:27,957 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 80 flow. Second operand 3 states and 370 transitions. [2023-08-30 08:43:27,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 126 flow [2023-08-30 08:43:27,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:43:27,977 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 70 flow [2023-08-30 08:43:27,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-08-30 08:43:27,982 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -6 predicate places. [2023-08-30 08:43:27,982 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 70 flow [2023-08-30 08:43:27,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 08:43:27,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:27,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:43:27,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:43:27,984 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 08:43:27,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:27,985 INFO L85 PathProgramCache]: Analyzing trace with hash 545435976, now seen corresponding path program 1 times [2023-08-30 08:43:27,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:27,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040350162] [2023-08-30 08:43:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:27,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:28,035 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 08:43:28,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:28,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040350162] [2023-08-30 08:43:28,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040350162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:28,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:28,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:43:28,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520392818] [2023-08-30 08:43:28,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:28,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:43:28,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:28,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:43:28,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:43:28,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 244 [2023-08-30 08:43:28,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 08:43:28,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:28,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 244 [2023-08-30 08:43:28,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:28,797 INFO L130 PetriNetUnfolder]: 4853/6818 cut-off events. [2023-08-30 08:43:28,798 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:28,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13754 conditions, 6818 events. 4853/6818 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 35127 event pairs, 1225 based on Foata normal form. 0/5765 useless extension candidates. Maximal degree in co-relation 13748. Up to 5661 conditions per place. [2023-08-30 08:43:28,835 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 43 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-08-30 08:43:28,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 214 flow [2023-08-30 08:43:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:43:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:43:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2023-08-30 08:43:28,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5341530054644809 [2023-08-30 08:43:28,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2023-08-30 08:43:28,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2023-08-30 08:43:28,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:28,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2023-08-30 08:43:28,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 08:43:28,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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 08:43:28,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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 08:43:28,843 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 70 flow. Second operand 3 states and 391 transitions. [2023-08-30 08:43:28,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 214 flow [2023-08-30 08:43:28,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 213 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:43:28,844 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 108 flow [2023-08-30 08:43:28,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-08-30 08:43:28,845 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2023-08-30 08:43:28,845 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 108 flow [2023-08-30 08:43:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 08:43:28,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:28,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:43:28,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:43:28,846 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 08:43:28,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash 475249069, now seen corresponding path program 1 times [2023-08-30 08:43:28,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:28,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147268301] [2023-08-30 08:43:28,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:28,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:28,944 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 08:43:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147268301] [2023-08-30 08:43:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147268301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:43:28,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409458345] [2023-08-30 08:43:28,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:28,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:43:28,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:28,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:43:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:43:28,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 244 [2023-08-30 08:43:28,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 08:43:28,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:28,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 244 [2023-08-30 08:43:28,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:29,564 INFO L130 PetriNetUnfolder]: 3167/4506 cut-off events. [2023-08-30 08:43:29,565 INFO L131 PetriNetUnfolder]: For 396/396 co-relation queries the response was YES. [2023-08-30 08:43:29,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10902 conditions, 4506 events. 3167/4506 cut-off events. For 396/396 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 21986 event pairs, 799 based on Foata normal form. 0/4261 useless extension candidates. Maximal degree in co-relation 10894. Up to 1680 conditions per place. [2023-08-30 08:43:29,601 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 58 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2023-08-30 08:43:29,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 70 transitions, 332 flow [2023-08-30 08:43:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:43:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:43:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 523 transitions. [2023-08-30 08:43:29,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5358606557377049 [2023-08-30 08:43:29,604 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 523 transitions. [2023-08-30 08:43:29,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 523 transitions. [2023-08-30 08:43:29,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:29,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 523 transitions. [2023-08-30 08:43:29,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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 08:43:29,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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 08:43:29,610 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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 08:43:29,610 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 108 flow. Second operand 4 states and 523 transitions. [2023-08-30 08:43:29,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 70 transitions, 332 flow [2023-08-30 08:43:29,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 70 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:43:29,614 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 161 flow [2023-08-30 08:43:29,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-08-30 08:43:29,615 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-08-30 08:43:29,618 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 161 flow [2023-08-30 08:43:29,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 08:43:29,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:29,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:43:29,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:43:29,620 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 08:43:29,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1183016885, now seen corresponding path program 1 times [2023-08-30 08:43:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864904147] [2023-08-30 08:43:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:29,823 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 08:43:29,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864904147] [2023-08-30 08:43:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864904147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:29,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:29,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:43:29,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294253092] [2023-08-30 08:43:29,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:29,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:43:29,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:43:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:43:29,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 244 [2023-08-30 08:43:29,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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 08:43:29,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:29,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 244 [2023-08-30 08:43:29,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:30,356 INFO L130 PetriNetUnfolder]: 2867/4032 cut-off events. [2023-08-30 08:43:30,356 INFO L131 PetriNetUnfolder]: For 2574/2574 co-relation queries the response was YES. [2023-08-30 08:43:30,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10806 conditions, 4032 events. 2867/4032 cut-off events. For 2574/2574 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 19134 event pairs, 755 based on Foata normal form. 0/3985 useless extension candidates. Maximal degree in co-relation 10796. Up to 1680 conditions per place. [2023-08-30 08:43:30,384 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 67 selfloop transitions, 13 changer transitions 4/87 dead transitions. [2023-08-30 08:43:30,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 455 flow [2023-08-30 08:43:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:43:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:43:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-08-30 08:43:30,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352459016393443 [2023-08-30 08:43:30,391 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-08-30 08:43:30,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-08-30 08:43:30,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:30,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-08-30 08:43:30,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 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 08:43:30,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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 08:43:30,396 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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 08:43:30,396 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 161 flow. Second operand 5 states and 653 transitions. [2023-08-30 08:43:30,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 455 flow [2023-08-30 08:43:30,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 437 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:43:30,408 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 185 flow [2023-08-30 08:43:30,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-08-30 08:43:30,409 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2023-08-30 08:43:30,410 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 185 flow [2023-08-30 08:43:30,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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 08:43:30,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:30,410 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] [2023-08-30 08:43:30,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:43:30,411 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 08:43:30,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash -10265153, now seen corresponding path program 1 times [2023-08-30 08:43:30,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916328993] [2023-08-30 08:43:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:30,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:30,584 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 08:43:30,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:30,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916328993] [2023-08-30 08:43:30,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916328993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:30,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:30,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:43:30,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211808326] [2023-08-30 08:43:30,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:30,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:43:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:30,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:43:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:43:30,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 244 [2023-08-30 08:43:30,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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 08:43:30,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:30,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 244 [2023-08-30 08:43:30,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:31,155 INFO L130 PetriNetUnfolder]: 2840/3985 cut-off events. [2023-08-30 08:43:31,155 INFO L131 PetriNetUnfolder]: For 3184/3184 co-relation queries the response was YES. [2023-08-30 08:43:31,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10951 conditions, 3985 events. 2840/3985 cut-off events. For 3184/3184 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 18996 event pairs, 755 based on Foata normal form. 16/3970 useless extension candidates. Maximal degree in co-relation 10940. Up to 1680 conditions per place. [2023-08-30 08:43:31,166 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2023-08-30 08:43:31,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 79 transitions, 407 flow [2023-08-30 08:43:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:43:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:43:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2023-08-30 08:43:31,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.51775956284153 [2023-08-30 08:43:31,169 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 758 transitions. [2023-08-30 08:43:31,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 758 transitions. [2023-08-30 08:43:31,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:31,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 758 transitions. [2023-08-30 08:43:31,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.33333333333333) internal successors, (758), 6 states have internal predecessors, (758), 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 08:43:31,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 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 08:43:31,175 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 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 08:43:31,175 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 185 flow. Second operand 6 states and 758 transitions. [2023-08-30 08:43:31,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 79 transitions, 407 flow [2023-08-30 08:43:31,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 79 transitions, 352 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:43:31,254 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-30 08:43:31,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-08-30 08:43:31,255 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-30 08:43:31,255 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-30 08:43:31,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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 08:43:31,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:43:31,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:43:31,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:43:31,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:43:31,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:43:31,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:43:31,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:43:31,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:43:31,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:43:31,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:43:31,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:43:31,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:43:31,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:43:31,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:43:31,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:43:31,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:43:31,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:43:31,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:43:31,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:43:31,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:43:31,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:43:31,262 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:43:31,266 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:43:31,266 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:43:31,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:43:31 BasicIcfg [2023-08-30 08:43:31,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:43:31,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:43:31,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:43:31,270 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:43:31,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:43:22" (3/4) ... [2023-08-30 08:43:31,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:43:31,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:43:31,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:43:31,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:43:31,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:43:31,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-08-30 08:43:31,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 08:43:31,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:43:31,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:43:31,318 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:43:31,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:43:31,319 INFO L158 Benchmark]: Toolchain (without parser) took 10656.16ms. Allocated memory was 69.2MB in the beginning and 828.4MB in the end (delta: 759.2MB). Free memory was 39.1MB in the beginning and 573.3MB in the end (delta: -534.1MB). Peak memory consumption was 223.3MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,319 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:43:31,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.28ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 33.1MB in the end (delta: 5.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.88ms. Allocated memory is still 69.2MB. Free memory was 33.1MB in the beginning and 30.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,322 INFO L158 Benchmark]: Boogie Preprocessor took 45.62ms. Allocated memory is still 69.2MB. Free memory was 30.4MB in the beginning and 48.5MB in the end (delta: -18.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,322 INFO L158 Benchmark]: RCFGBuilder took 733.81ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 48.5MB in the beginning and 56.3MB in the end (delta: -7.8MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,323 INFO L158 Benchmark]: TraceAbstraction took 9221.21ms. Allocated memory was 90.2MB in the beginning and 828.4MB in the end (delta: 738.2MB). Free memory was 55.8MB in the beginning and 576.4MB in the end (delta: -520.6MB). Peak memory consumption was 564.4MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,323 INFO L158 Benchmark]: Witness Printer took 48.98ms. Allocated memory is still 828.4MB. Free memory was 576.4MB in the beginning and 573.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:43:31,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.28ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 33.1MB in the end (delta: 5.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.88ms. Allocated memory is still 69.2MB. Free memory was 33.1MB in the beginning and 30.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.62ms. Allocated memory is still 69.2MB. Free memory was 30.4MB in the beginning and 48.5MB in the end (delta: -18.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * RCFGBuilder took 733.81ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 48.5MB in the beginning and 56.3MB in the end (delta: -7.8MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9221.21ms. Allocated memory was 90.2MB in the beginning and 828.4MB in the end (delta: 738.2MB). Free memory was 55.8MB in the beginning and 576.4MB in the end (delta: -520.6MB). Peak memory consumption was 564.4MB. Max. memory is 16.1GB. * Witness Printer took 48.98ms. Allocated memory is still 828.4MB. Free memory was 576.4MB in the beginning and 573.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 145 PlacesBefore, 47 PlacesAfterwards, 134 TransitionsBefore, 34 TransitionsAfterwards, 3812 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 106 TotalNumberOfCompositions, 12524 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4835, independent: 4511, independent conditional: 0, independent unconditional: 4511, dependent: 324, dependent conditional: 0, dependent unconditional: 324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1937, independent: 1879, independent conditional: 0, independent unconditional: 1879, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4835, independent: 2632, independent conditional: 0, independent unconditional: 2632, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 1937, unknown conditional: 0, unknown unconditional: 1937] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 177, Positive conditional cache size: 0, Positive unconditional cache size: 177, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: 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, 181 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: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 341 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 14 mSDtfsCounter, 341 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=185occurred 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, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 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 08:43:31,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE