./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi000_power.opt_pso.opt_rmo.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/rfi000_power.opt_pso.opt_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 --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 05:22:26,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:22:26,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:22:26,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:22:26,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:22:26,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:22:26,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:22:26,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:22:26,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:22:26,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:22:26,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:22:26,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:22:26,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:22:26,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:22:26,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:22:26,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:22:26,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:22:26,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:22:26,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:22:26,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:22:26,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:22:26,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:22:26,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:22:26,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:22:26,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:22:26,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:22:26,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:22:26,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:22:26,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:22:26,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:22:26,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:22:26,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:22:26,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:22:26,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:22:26,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:22:26,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:22:26,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:22:26,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:22:26,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:22:26,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:22:26,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:22:26,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:22:26,666 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:22:26,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:22:26,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:22:26,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:22:26,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:22:26,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:22:26,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:22:26,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:22:26,668 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:22:26,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:22:26,669 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:22:26,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:22:26,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:22:26,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:22:26,670 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:22:26,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:22:26,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:22:26,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:22:26,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:22:26,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:26,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:22:26,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:22:26,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:22:26,673 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:22:26,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:22:26,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:22:26,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:22:26,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:22:26,938 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:22:26,938 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:22:26,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-09-01 05:22:27,845 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:22:28,094 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:22:28,094 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-09-01 05:22:28,104 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca804613a/8687f5ea83974cec9301c59860bc2a8a/FLAG0e1752d95 [2023-09-01 05:22:28,128 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca804613a/8687f5ea83974cec9301c59860bc2a8a [2023-09-01 05:22:28,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:22:28,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:22:28,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:28,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:22:28,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:22:28,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55eee78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28, skipping insertion in model container [2023-09-01 05:22:28,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:22:28,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:22:28,318 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/rfi000_power.opt_pso.opt_rmo.opt.i[966,979] [2023-09-01 05:22:28,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:28,500 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:22:28,509 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/rfi000_power.opt_pso.opt_rmo.opt.i[966,979] [2023-09-01 05:22:28,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:28,568 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:28,570 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:28,575 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:22:28,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28 WrapperNode [2023-09-01 05:22:28,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:28,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:28,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:22:28,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:22:28,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,610 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 138 [2023-09-01 05:22:28,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:28,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:22:28,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:22:28,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:22:28,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:22:28,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:22:28,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:22:28,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:22:28,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (1/1) ... [2023-09-01 05:22:28,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:28,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:22:28,679 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 05:22:28,682 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 05:22:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:22:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:22:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:22:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:22:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:22:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:22:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:22:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:22:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:22:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:22:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:22:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:22:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:22:28,706 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 05:22:28,822 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:22:28,823 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:22:29,159 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:22:29,262 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:22:29,262 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:22:29,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:29 BoogieIcfgContainer [2023-09-01 05:22:29,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:22:29,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:22:29,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:22:29,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:22:29,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:22:28" (1/3) ... [2023-09-01 05:22:29,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343e54f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:29, skipping insertion in model container [2023-09-01 05:22:29,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:28" (2/3) ... [2023-09-01 05:22:29,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343e54f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:29, skipping insertion in model container [2023-09-01 05:22:29,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:29" (3/3) ... [2023-09-01 05:22:29,270 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_power.opt_pso.opt_rmo.opt.i [2023-09-01 05:22:29,275 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:22:29,281 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:22:29,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 05:22:29,282 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:22:29,319 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:22:29,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2023-09-01 05:22:29,392 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-09-01 05:22:29,393 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:29,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-09-01 05:22:29,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2023-09-01 05:22:29,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:29,403 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:22:29,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:29,415 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:29,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:29,438 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-09-01 05:22:29,438 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:29,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-09-01 05:22:29,439 INFO L119 LiptonReduction]: Number of co-enabled transitions 1364 [2023-09-01 05:22:32,708 INFO L134 LiptonReduction]: Checked pairs total: 4450 [2023-09-01 05:22:32,708 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-09-01 05:22:32,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:22:32,725 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;@2a137b16, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:22:32,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 05:22:32,728 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-09-01 05:22:32,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:32,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:32,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:22:32,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:22:32,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:32,733 INFO L85 PathProgramCache]: Analyzing trace with hash -471234465, now seen corresponding path program 1 times [2023-09-01 05:22:32,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:32,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97350662] [2023-09-01 05:22:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:32,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:32,962 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 05:22:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:32,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97350662] [2023-09-01 05:22:32,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97350662] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:32,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:32,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:22:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789327447] [2023-09-01 05:22:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:32,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:22:32,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:22:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:22:32,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 167 [2023-09-01 05:22:33,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 05:22:33,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:33,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 167 [2023-09-01 05:22:33,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:33,091 INFO L130 PetriNetUnfolder]: 99/199 cut-off events. [2023-09-01 05:22:33,091 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 05:22:33,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 199 events. 99/199 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 721 event pairs, 44 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 391. Up to 102 conditions per place. [2023-09-01 05:22:33,097 INFO L137 encePairwiseOnDemand]: 160/167 looper letters, 23 selfloop transitions, 3 changer transitions 2/32 dead transitions. [2023-09-01 05:22:33,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 129 flow [2023-09-01 05:22:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:22:33,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:22:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-09-01 05:22:33,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5129740518962076 [2023-09-01 05:22:33,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-09-01 05:22:33,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-09-01 05:22:33,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:33,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-09-01 05:22:33,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 05:22:33,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 05:22:33,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 05:22:33,126 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 48 flow. Second operand 3 states and 257 transitions. [2023-09-01 05:22:33,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 129 flow [2023-09-01 05:22:33,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 32 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:22:33,129 INFO L231 Difference]: Finished difference. Result has 29 places, 21 transitions, 63 flow [2023-09-01 05:22:33,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2023-09-01 05:22:33,133 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-09-01 05:22:33,133 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 63 flow [2023-09-01 05:22:33,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 05:22:33,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:33,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:33,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:22:33,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:22:33,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:33,142 INFO L85 PathProgramCache]: Analyzing trace with hash 978405274, now seen corresponding path program 1 times [2023-09-01 05:22:33,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:33,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059021344] [2023-09-01 05:22:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:33,264 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 05:22:33,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:33,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059021344] [2023-09-01 05:22:33,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059021344] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:33,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:33,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:33,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059254270] [2023-09-01 05:22:33,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:33,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:33,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:33,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 167 [2023-09-01 05:22:33,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:33,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:33,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 167 [2023-09-01 05:22:33,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:33,341 INFO L130 PetriNetUnfolder]: 86/174 cut-off events. [2023-09-01 05:22:33,341 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-09-01 05:22:33,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 174 events. 86/174 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 622 event pairs, 44 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 401. Up to 87 conditions per place. [2023-09-01 05:22:33,342 INFO L137 encePairwiseOnDemand]: 162/167 looper letters, 21 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-09-01 05:22:33,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 123 flow [2023-09-01 05:22:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 326 transitions. [2023-09-01 05:22:33,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880239520958084 [2023-09-01 05:22:33,344 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 326 transitions. [2023-09-01 05:22:33,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 326 transitions. [2023-09-01 05:22:33,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:33,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 326 transitions. [2023-09-01 05:22:33,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 05:22:33,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 05:22:33,347 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 05:22:33,347 INFO L175 Difference]: Start difference. First operand has 29 places, 21 transitions, 63 flow. Second operand 4 states and 326 transitions. [2023-09-01 05:22:33,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 123 flow [2023-09-01 05:22:33,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:22:33,348 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 58 flow [2023-09-01 05:22:33,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-09-01 05:22:33,349 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-09-01 05:22:33,349 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 58 flow [2023-09-01 05:22:33,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:33,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:33,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:33,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:22:33,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:22:33,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash 978405275, now seen corresponding path program 1 times [2023-09-01 05:22:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598175243] [2023-09-01 05:22:33,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:33,422 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 05:22:33,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:33,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598175243] [2023-09-01 05:22:33,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598175243] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:33,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:33,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:33,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741342054] [2023-09-01 05:22:33,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:33,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:33,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:33,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 167 [2023-09-01 05:22:33,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:33,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:33,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 167 [2023-09-01 05:22:33,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:33,504 INFO L130 PetriNetUnfolder]: 80/160 cut-off events. [2023-09-01 05:22:33,504 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2023-09-01 05:22:33,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 160 events. 80/160 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 576 event pairs, 44 based on Foata normal form. 8/156 useless extension candidates. Maximal degree in co-relation 365. Up to 87 conditions per place. [2023-09-01 05:22:33,505 INFO L137 encePairwiseOnDemand]: 162/167 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-09-01 05:22:33,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 114 flow [2023-09-01 05:22:33,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:33,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:33,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2023-09-01 05:22:33,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48502994011976047 [2023-09-01 05:22:33,507 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 324 transitions. [2023-09-01 05:22:33,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 324 transitions. [2023-09-01 05:22:33,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:33,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 324 transitions. [2023-09-01 05:22:33,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 05:22:33,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 05:22:33,511 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 05:22:33,511 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 58 flow. Second operand 4 states and 324 transitions. [2023-09-01 05:22:33,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 114 flow [2023-09-01 05:22:33,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:22:33,512 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-09-01 05:22:33,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-09-01 05:22:33,513 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-09-01 05:22:33,513 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-09-01 05:22:33,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:33,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-09-01 05:22:33,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-09-01 05:22:33,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-09-01 05:22:33,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-09-01 05:22:33,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-01 05:22:33,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-01 05:22:33,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-09-01 05:22:33,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-09-01 05:22:33,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-09-01 05:22:33,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-09-01 05:22:33,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:22:33,517 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 05:22:33,521 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:22:33,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:22:33,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:22:33 BasicIcfg [2023-09-01 05:22:33,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:22:33,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:22:33,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:22:33,525 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:22:33,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:29" (3/4) ... [2023-09-01 05:22:33,527 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:22:33,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:22:33,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:22:33,534 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-09-01 05:22:33,535 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-09-01 05:22:33,535 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:22:33,535 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:22:33,566 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:22:33,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:22:33,567 INFO L158 Benchmark]: Toolchain (without parser) took 5435.58ms. Allocated memory was 75.5MB in the beginning and 121.6MB in the end (delta: 46.1MB). Free memory was 51.2MB in the beginning and 79.9MB in the end (delta: -28.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,567 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:22:33,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.59ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.0MB in the beginning and 63.6MB in the end (delta: -12.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.64ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 61.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,567 INFO L158 Benchmark]: Boogie Preprocessor took 22.00ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 59.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,568 INFO L158 Benchmark]: RCFGBuilder took 622.35ms. Allocated memory is still 92.3MB. Free memory was 59.0MB in the beginning and 52.7MB in the end (delta: 6.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,568 INFO L158 Benchmark]: TraceAbstraction took 4258.93ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 52.3MB in the beginning and 83.1MB in the end (delta: -30.8MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,568 INFO L158 Benchmark]: Witness Printer took 41.30ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 79.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:22:33,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.59ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.0MB in the beginning and 63.6MB in the end (delta: -12.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.64ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 61.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.00ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 59.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.35ms. Allocated memory is still 92.3MB. Free memory was 59.0MB in the beginning and 52.7MB in the end (delta: 6.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4258.93ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 52.3MB in the beginning and 83.1MB in the end (delta: -30.8MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Witness Printer took 41.30ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 79.9MB in the end (delta: 3.2MB). 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: 3.3s, 95 PlacesBefore, 28 PlacesAfterwards, 90 TransitionsBefore, 21 TransitionsAfterwards, 1364 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 4450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2061, independent: 1848, independent conditional: 0, independent unconditional: 1848, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 768, independent: 720, independent conditional: 0, independent unconditional: 720, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2061, independent: 1128, independent conditional: 0, independent unconditional: 1128, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 768, unknown conditional: 0, unknown unconditional: 768] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: 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 5 procedures, 115 locations, 10 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: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 5 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:22:33,594 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