./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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 ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa38d95315e187ea5fe9b62230d938985648af7e7d892502233db02121b7b545 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 08:13:19,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 08:13:19,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 08:13:19,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 08:13:19,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 08:13:19,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 08:13:19,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 08:13:19,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 08:13:19,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 08:13:19,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 08:13:19,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 08:13:19,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 08:13:19,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 08:13:19,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 08:13:19,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 08:13:19,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 08:13:19,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 08:13:19,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 08:13:19,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 08:13:19,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 08:13:19,564 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 08:13:19,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 08:13:19,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 08:13:19,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 08:13:19,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 08:13:19,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 08:13:19,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 08:13:19,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 08:13:19,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 08:13:19,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 08:13:19,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 08:13:19,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 08:13:19,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 08:13:19,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 08:13:19,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 08:13:19,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 08:13:19,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 08:13:19,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 08:13:19,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 08:13:19,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 08:13:19,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 08:13:19,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 08:13:19,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 08:13:19,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 08:13:19,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 08:13:19,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 08:13:19,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 08:13:19,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 08:13:19,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 08:13:19,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 08:13:19,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 08:13:19,612 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 08:13:19,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 08:13:19,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 08:13:19,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 08:13:19,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 08:13:19,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 08:13:19,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 08:13:19,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 08:13:19,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 08:13:19,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 08:13:19,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:13:19,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 08:13:19,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 08:13:19,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 08:13:19,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 08:13:19,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 08:13:19,617 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 08:13:19,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 08:13:19,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 08:13:19,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa38d95315e187ea5fe9b62230d938985648af7e7d892502233db02121b7b545 [2022-07-12 08:13:19,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 08:13:19,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 08:13:19,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 08:13:19,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 08:13:19,838 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 08:13:19,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c [2022-07-12 08:13:19,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa2f64fb/9431cfb5975f405593f0f0eecd8e11fb/FLAG66140523a [2022-07-12 08:13:20,604 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 08:13:20,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c [2022-07-12 08:13:20,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa2f64fb/9431cfb5975f405593f0f0eecd8e11fb/FLAG66140523a [2022-07-12 08:13:20,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa2f64fb/9431cfb5975f405593f0f0eecd8e11fb [2022-07-12 08:13:20,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 08:13:20,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 08:13:20,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 08:13:20,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 08:13:20,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 08:13:20,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:13:20" (1/1) ... [2022-07-12 08:13:20,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374276fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:20, skipping insertion in model container [2022-07-12 08:13:20,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:13:20" (1/1) ... [2022-07-12 08:13:20,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 08:13:21,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 08:13:22,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c[378560,378573] [2022-07-12 08:13:22,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c[383339,383352] [2022-07-12 08:13:22,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:13:22,523 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 08:13:23,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c[378560,378573] [2022-07-12 08:13:23,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-1.c[383339,383352] [2022-07-12 08:13:23,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:13:23,171 INFO L208 MainTranslator]: Completed translation [2022-07-12 08:13:23,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23 WrapperNode [2022-07-12 08:13:23,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 08:13:23,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 08:13:23,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 08:13:23,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 08:13:23,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,517 INFO L137 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12967 [2022-07-12 08:13:23,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 08:13:23,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 08:13:23,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 08:13:23,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 08:13:23,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 08:13:23,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 08:13:23,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 08:13:23,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 08:13:23,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (1/1) ... [2022-07-12 08:13:23,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:13:23,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 08:13:24,002 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) [2022-07-12 08:13:24,010 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 [2022-07-12 08:13:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 08:13:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 08:13:24,032 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 08:13:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 08:13:24,032 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 08:13:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 08:13:24,032 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 08:13:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 08:13:24,033 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 08:13:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 08:13:24,033 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 08:13:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 08:13:24,033 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 08:13:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 08:13:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 08:13:24,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 08:13:24,149 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 08:13:24,150 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 08:13:29,038 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 08:13:29,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 08:13:29,064 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-12 08:13:29,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:13:29 BoogieIcfgContainer [2022-07-12 08:13:29,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 08:13:29,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 08:13:29,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 08:13:29,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 08:13:29,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 08:13:20" (1/3) ... [2022-07-12 08:13:29,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4faf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:13:29, skipping insertion in model container [2022-07-12 08:13:29,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:13:23" (2/3) ... [2022-07-12 08:13:29,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4faf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:13:29, skipping insertion in model container [2022-07-12 08:13:29,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:13:29" (3/3) ... [2022-07-12 08:13:29,076 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.08.cil-1.c [2022-07-12 08:13:29,085 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 08:13:29,086 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 08:13:29,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 08:13:29,173 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@41cffd39, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fb4a169 [2022-07-12 08:13:29,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 08:13:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-12 08:13:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:29,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:29,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:29,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:29,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1316356206, now seen corresponding path program 1 times [2022-07-12 08:13:29,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:29,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262998614] [2022-07-12 08:13:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:29,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:29,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:29,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262998614] [2022-07-12 08:13:29,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262998614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:29,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:29,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:13:29,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119495315] [2022-07-12 08:13:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:29,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:13:29,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:13:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:13:29,634 INFO L87 Difference]: Start difference. First operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:30,628 INFO L93 Difference]: Finished difference Result 5022 states and 9244 transitions. [2022-07-12 08:13:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:13:30,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:30,647 INFO L225 Difference]: With dead ends: 5022 [2022-07-12 08:13:30,648 INFO L226 Difference]: Without dead ends: 2496 [2022-07-12 08:13:30,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 08:13:30,667 INFO L413 NwaCegarLoop]: 4499 mSDtfsCounter, 734 mSDsluCounter, 12361 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 16860 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:30,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 16860 Invalid, 563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 08:13:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-07-12 08:13:30,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2398. [2022-07-12 08:13:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2368 states have (on average 1.8344594594594594) internal successors, (4344), 2370 states have internal predecessors, (4344), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-12 08:13:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4388 transitions. [2022-07-12 08:13:30,768 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4388 transitions. Word has length 134 [2022-07-12 08:13:30,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:30,768 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 4388 transitions. [2022-07-12 08:13:30,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4388 transitions. [2022-07-12 08:13:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:30,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:30,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:30,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 08:13:30,773 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:30,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:30,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2022952812, now seen corresponding path program 1 times [2022-07-12 08:13:30,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:30,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814799224] [2022-07-12 08:13:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:30,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:30,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:31,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:31,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814799224] [2022-07-12 08:13:31,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814799224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:31,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:31,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 08:13:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587570027] [2022-07-12 08:13:31,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:31,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 08:13:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:31,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 08:13:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 08:13:31,031 INFO L87 Difference]: Start difference. First operand 2398 states and 4388 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:32,679 INFO L93 Difference]: Finished difference Result 3126 states and 5555 transitions. [2022-07-12 08:13:32,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 08:13:32,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:32,695 INFO L225 Difference]: With dead ends: 3126 [2022-07-12 08:13:32,695 INFO L226 Difference]: Without dead ends: 2865 [2022-07-12 08:13:32,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:13:32,698 INFO L413 NwaCegarLoop]: 4466 mSDtfsCounter, 5050 mSDsluCounter, 12566 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 17032 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:32,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5065 Valid, 17032 Invalid, 1531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 08:13:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2022-07-12 08:13:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2670. [2022-07-12 08:13:32,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2616 states have (on average 1.8103975535168195) internal successors, (4736), 2619 states have internal predecessors, (4736), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-07-12 08:13:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 4817 transitions. [2022-07-12 08:13:32,782 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 4817 transitions. Word has length 134 [2022-07-12 08:13:32,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:32,782 INFO L495 AbstractCegarLoop]: Abstraction has 2670 states and 4817 transitions. [2022-07-12 08:13:32,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:32,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 4817 transitions. [2022-07-12 08:13:32,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:32,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:32,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:32,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 08:13:32,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 316449264, now seen corresponding path program 1 times [2022-07-12 08:13:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450059180] [2022-07-12 08:13:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:32,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:32,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450059180] [2022-07-12 08:13:32,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450059180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:32,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:32,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:32,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423904139] [2022-07-12 08:13:32,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:32,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:32,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:32,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:32,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:32,894 INFO L87 Difference]: Start difference. First operand 2670 states and 4817 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:34,964 INFO L93 Difference]: Finished difference Result 3779 states and 6593 transitions. [2022-07-12 08:13:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:13:34,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:34,975 INFO L225 Difference]: With dead ends: 3779 [2022-07-12 08:13:34,975 INFO L226 Difference]: Without dead ends: 3246 [2022-07-12 08:13:34,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:13:34,982 INFO L413 NwaCegarLoop]: 4677 mSDtfsCounter, 5064 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 21869 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:34,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5079 Valid, 21869 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 08:13:34,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2022-07-12 08:13:35,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 2923. [2022-07-12 08:13:35,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2845 states have (on average 1.789103690685413) internal successors, (5090), 2849 states have internal predecessors, (5090), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2022-07-12 08:13:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5207 transitions. [2022-07-12 08:13:35,054 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5207 transitions. Word has length 134 [2022-07-12 08:13:35,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:35,054 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 5207 transitions. [2022-07-12 08:13:35,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5207 transitions. [2022-07-12 08:13:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:35,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:35,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:35,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 08:13:35,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1976631762, now seen corresponding path program 1 times [2022-07-12 08:13:35,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:35,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070098392] [2022-07-12 08:13:35,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:35,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:35,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:35,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:35,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:35,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:35,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070098392] [2022-07-12 08:13:35,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070098392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:35,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:35,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:35,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028784400] [2022-07-12 08:13:35,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:35,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:35,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:35,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:35,179 INFO L87 Difference]: Start difference. First operand 2923 states and 5207 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:37,019 INFO L93 Difference]: Finished difference Result 4741 states and 8111 transitions. [2022-07-12 08:13:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:13:37,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:37,035 INFO L225 Difference]: With dead ends: 4741 [2022-07-12 08:13:37,035 INFO L226 Difference]: Without dead ends: 3955 [2022-07-12 08:13:37,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:13:37,046 INFO L413 NwaCegarLoop]: 4494 mSDtfsCounter, 5141 mSDsluCounter, 16738 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5156 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:37,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5156 Valid, 21232 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:13:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-07-12 08:13:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3430. [2022-07-12 08:13:37,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3304 states have (on average 1.7551452784503632) internal successors, (5799), 3310 states have internal predecessors, (5799), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2022-07-12 08:13:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 5992 transitions. [2022-07-12 08:13:37,150 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 5992 transitions. Word has length 134 [2022-07-12 08:13:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:37,151 INFO L495 AbstractCegarLoop]: Abstraction has 3430 states and 5992 transitions. [2022-07-12 08:13:37,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 5992 transitions. [2022-07-12 08:13:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:37,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:37,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:37,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 08:13:37,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:37,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:37,158 INFO L85 PathProgramCache]: Analyzing trace with hash -249486800, now seen corresponding path program 1 times [2022-07-12 08:13:37,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:37,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121997660] [2022-07-12 08:13:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:37,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:37,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:37,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:37,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121997660] [2022-07-12 08:13:37,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121997660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:37,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:37,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:37,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680116732] [2022-07-12 08:13:37,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:37,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:37,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:37,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:37,259 INFO L87 Difference]: Start difference. First operand 3430 states and 5992 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:39,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:39,345 INFO L93 Difference]: Finished difference Result 6592 states and 11016 transitions. [2022-07-12 08:13:39,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:13:39,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:39,368 INFO L225 Difference]: With dead ends: 6592 [2022-07-12 08:13:39,368 INFO L226 Difference]: Without dead ends: 5299 [2022-07-12 08:13:39,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:13:39,380 INFO L413 NwaCegarLoop]: 4665 mSDtfsCounter, 5059 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 21857 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:39,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5074 Valid, 21857 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 08:13:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5299 states. [2022-07-12 08:13:39,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5299 to 4445. [2022-07-12 08:13:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4223 states have (on average 1.7089746625621596) internal successors, (7217), 4233 states have internal predecessors, (7217), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2022-07-12 08:13:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 7568 transitions. [2022-07-12 08:13:39,562 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 7568 transitions. Word has length 134 [2022-07-12 08:13:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:39,562 INFO L495 AbstractCegarLoop]: Abstraction has 4445 states and 7568 transitions. [2022-07-12 08:13:39,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 7568 transitions. [2022-07-12 08:13:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:39,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:39,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:39,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 08:13:39,566 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash 221869550, now seen corresponding path program 1 times [2022-07-12 08:13:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:39,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292654599] [2022-07-12 08:13:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:39,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:39,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292654599] [2022-07-12 08:13:39,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292654599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:39,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:39,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:39,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603662683] [2022-07-12 08:13:39,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:39,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:39,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:39,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:39,672 INFO L87 Difference]: Start difference. First operand 4445 states and 7568 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:41,841 INFO L93 Difference]: Finished difference Result 10286 states and 16830 transitions. [2022-07-12 08:13:41,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:13:41,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:41,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:41,872 INFO L225 Difference]: With dead ends: 10286 [2022-07-12 08:13:41,872 INFO L226 Difference]: Without dead ends: 7978 [2022-07-12 08:13:41,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:13:41,882 INFO L413 NwaCegarLoop]: 4657 mSDtfsCounter, 5054 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 21849 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:41,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 21849 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 08:13:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2022-07-12 08:13:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 6489. [2022-07-12 08:13:42,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6075 states have (on average 1.6587654320987655) internal successors, (10077), 6093 states have internal predecessors, (10077), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2022-07-12 08:13:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 10762 transitions. [2022-07-12 08:13:42,114 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 10762 transitions. Word has length 134 [2022-07-12 08:13:42,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:42,115 INFO L495 AbstractCegarLoop]: Abstraction has 6489 states and 10762 transitions. [2022-07-12 08:13:42,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:42,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 10762 transitions. [2022-07-12 08:13:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:42,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:42,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:42,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 08:13:42,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:42,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1909481172, now seen corresponding path program 1 times [2022-07-12 08:13:42,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:42,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543050542] [2022-07-12 08:13:42,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:42,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:42,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:42,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:42,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:42,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543050542] [2022-07-12 08:13:42,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543050542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:42,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:42,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:42,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237952609] [2022-07-12 08:13:42,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:42,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:42,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:42,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:42,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:42,212 INFO L87 Difference]: Start difference. First operand 6489 states and 10762 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:44,448 INFO L93 Difference]: Finished difference Result 17692 states and 28550 transitions. [2022-07-12 08:13:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:13:44,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:44,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:44,502 INFO L225 Difference]: With dead ends: 17692 [2022-07-12 08:13:44,503 INFO L226 Difference]: Without dead ends: 13340 [2022-07-12 08:13:44,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:13:44,520 INFO L413 NwaCegarLoop]: 4652 mSDtfsCounter, 5053 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 21844 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:44,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5068 Valid, 21844 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:13:44,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13340 states. [2022-07-12 08:13:44,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13340 to 10590. [2022-07-12 08:13:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.615093954248366) internal successors, (15815), 9826 states have internal predecessors, (15815), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-07-12 08:13:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17222 transitions. [2022-07-12 08:13:44,908 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17222 transitions. Word has length 134 [2022-07-12 08:13:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:44,908 INFO L495 AbstractCegarLoop]: Abstraction has 10590 states and 17222 transitions. [2022-07-12 08:13:44,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17222 transitions. [2022-07-12 08:13:44,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:44,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:44,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:44,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 08:13:44,915 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:44,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:44,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1346901550, now seen corresponding path program 1 times [2022-07-12 08:13:44,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:44,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906413693] [2022-07-12 08:13:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:44,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:44,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:44,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906413693] [2022-07-12 08:13:44,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906413693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:44,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:44,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880540911] [2022-07-12 08:13:44,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:44,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:44,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:44,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:44,997 INFO L87 Difference]: Start difference. First operand 10590 states and 17222 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:46,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:46,492 INFO L93 Difference]: Finished difference Result 21934 states and 35495 transitions. [2022-07-12 08:13:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:13:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:46,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:46,536 INFO L225 Difference]: With dead ends: 21934 [2022-07-12 08:13:46,536 INFO L226 Difference]: Without dead ends: 13481 [2022-07-12 08:13:46,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:13:46,564 INFO L413 NwaCegarLoop]: 4398 mSDtfsCounter, 4752 mSDsluCounter, 16507 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 20905 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:46,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 20905 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 08:13:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13481 states. [2022-07-12 08:13:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13481 to 10590. [2022-07-12 08:13:46,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.6117238562091503) internal successors, (15782), 9826 states have internal predecessors, (15782), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-07-12 08:13:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17189 transitions. [2022-07-12 08:13:47,000 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17189 transitions. Word has length 134 [2022-07-12 08:13:47,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:47,001 INFO L495 AbstractCegarLoop]: Abstraction has 10590 states and 17189 transitions. [2022-07-12 08:13:47,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17189 transitions. [2022-07-12 08:13:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:47,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:47,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 08:13:47,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash -626263828, now seen corresponding path program 1 times [2022-07-12 08:13:47,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:47,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332082715] [2022-07-12 08:13:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:47,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:47,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:47,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:47,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332082715] [2022-07-12 08:13:47,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332082715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:47,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:47,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:47,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206414270] [2022-07-12 08:13:47,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:47,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:47,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:47,094 INFO L87 Difference]: Start difference. First operand 10590 states and 17189 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:50,058 INFO L93 Difference]: Finished difference Result 32469 states and 51948 transitions. [2022-07-12 08:13:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:13:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:50,127 INFO L225 Difference]: With dead ends: 32469 [2022-07-12 08:13:50,127 INFO L226 Difference]: Without dead ends: 24016 [2022-07-12 08:13:50,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:13:50,157 INFO L413 NwaCegarLoop]: 4641 mSDtfsCounter, 5045 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 21833 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:50,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5060 Valid, 21833 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 08:13:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24016 states. [2022-07-12 08:13:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24016 to 18856. [2022-07-12 08:13:51,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18856 states, 17290 states have (on average 1.5792943898207057) internal successors, (27306), 17356 states have internal predecessors, (27306), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2022-07-12 08:13:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 30319 transitions. [2022-07-12 08:13:51,063 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 30319 transitions. Word has length 134 [2022-07-12 08:13:51,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:51,063 INFO L495 AbstractCegarLoop]: Abstraction has 18856 states and 30319 transitions. [2022-07-12 08:13:51,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:51,064 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 30319 transitions. [2022-07-12 08:13:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:51,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:51,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:51,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 08:13:51,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1526842990, now seen corresponding path program 1 times [2022-07-12 08:13:51,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:51,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391460160] [2022-07-12 08:13:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:51,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:51,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:51,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:51,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391460160] [2022-07-12 08:13:51,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391460160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:51,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:51,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266022410] [2022-07-12 08:13:51,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:51,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:51,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:51,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:51,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:51,192 INFO L87 Difference]: Start difference. First operand 18856 states and 30319 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:13:56,075 INFO L93 Difference]: Finished difference Result 69837 states and 111398 transitions. [2022-07-12 08:13:56,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 08:13:56,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:13:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:13:56,265 INFO L225 Difference]: With dead ends: 69837 [2022-07-12 08:13:56,265 INFO L226 Difference]: Without dead ends: 53118 [2022-07-12 08:13:56,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-12 08:13:56,308 INFO L413 NwaCegarLoop]: 4634 mSDtfsCounter, 5374 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5398 SdHoareTripleChecker+Valid, 21818 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:13:56,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5398 Valid, 21818 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:13:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53118 states. [2022-07-12 08:13:58,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53118 to 35257. [2022-07-12 08:13:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35257 states, 32219 states have (on average 1.5616872032030789) internal successors, (50316), 32349 states have internal predecessors, (50316), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2022-07-12 08:13:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35257 states to 35257 states and 56899 transitions. [2022-07-12 08:13:58,354 INFO L78 Accepts]: Start accepts. Automaton has 35257 states and 56899 transitions. Word has length 134 [2022-07-12 08:13:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:13:58,355 INFO L495 AbstractCegarLoop]: Abstraction has 35257 states and 56899 transitions. [2022-07-12 08:13:58,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:13:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 35257 states and 56899 transitions. [2022-07-12 08:13:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:13:58,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:13:58,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:13:58,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 08:13:58,372 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:13:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:13:58,373 INFO L85 PathProgramCache]: Analyzing trace with hash 903561388, now seen corresponding path program 1 times [2022-07-12 08:13:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:13:58,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302201225] [2022-07-12 08:13:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:13:58,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:13:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:13:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:13:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:13:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:13:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:13:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:13:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:13:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:13:58,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302201225] [2022-07-12 08:13:58,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302201225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:13:58,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:13:58,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:13:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389422836] [2022-07-12 08:13:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:13:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:13:58,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:13:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:13:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:13:58,453 INFO L87 Difference]: Start difference. First operand 35257 states and 56899 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:14:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:14:07,336 INFO L93 Difference]: Finished difference Result 134716 states and 217164 transitions. [2022-07-12 08:14:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 08:14:07,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:14:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:14:07,723 INFO L225 Difference]: With dead ends: 134716 [2022-07-12 08:14:07,724 INFO L226 Difference]: Without dead ends: 101596 [2022-07-12 08:14:07,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-12 08:14:07,819 INFO L413 NwaCegarLoop]: 4603 mSDtfsCounter, 5181 mSDsluCounter, 16758 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 21361 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:14:07,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5195 Valid, 21361 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 08:14:07,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101596 states. [2022-07-12 08:14:11,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101596 to 67354. [2022-07-12 08:14:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67354 states, 61436 states have (on average 1.5524122664235953) internal successors, (95374), 61694 states have internal predecessors, (95374), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2022-07-12 08:14:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67354 states to 67354 states and 110427 transitions. [2022-07-12 08:14:12,164 INFO L78 Accepts]: Start accepts. Automaton has 67354 states and 110427 transitions. Word has length 134 [2022-07-12 08:14:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:14:12,164 INFO L495 AbstractCegarLoop]: Abstraction has 67354 states and 110427 transitions. [2022-07-12 08:14:12,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:14:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 67354 states and 110427 transitions. [2022-07-12 08:14:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:14:12,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:14:12,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:14:12,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 08:14:12,198 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:14:12,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:14:12,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1022002862, now seen corresponding path program 1 times [2022-07-12 08:14:12,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:14:12,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162963342] [2022-07-12 08:14:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:14:12,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:14:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:14:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:14:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:14:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:14:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:12,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:14:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:14:12,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:14:12,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162963342] [2022-07-12 08:14:12,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162963342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:14:12,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:14:12,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:14:12,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823338176] [2022-07-12 08:14:12,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:14:12,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:14:12,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:14:12,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:14:12,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:14:12,421 INFO L87 Difference]: Start difference. First operand 67354 states and 110427 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:14:29,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:14:29,292 INFO L93 Difference]: Finished difference Result 260187 states and 427554 transitions. [2022-07-12 08:14:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 08:14:29,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-07-12 08:14:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:14:30,094 INFO L225 Difference]: With dead ends: 260187 [2022-07-12 08:14:30,095 INFO L226 Difference]: Without dead ends: 194970 [2022-07-12 08:14:30,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-12 08:14:30,558 INFO L413 NwaCegarLoop]: 4622 mSDtfsCounter, 5297 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5321 SdHoareTripleChecker+Valid, 21806 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:14:30,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5321 Valid, 21806 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:14:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194970 states. [2022-07-12 08:14:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194970 to 132059. [2022-07-12 08:14:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132059 states, 120509 states have (on average 1.5487639927308334) internal successors, (186640), 121023 states have internal predecessors, (186640), 7958 states have call successors, (7958), 3078 states have call predecessors, (7958), 3590 states have return successors, (28153), 8469 states have call predecessors, (28153), 7958 states have call successors, (28153) [2022-07-12 08:14:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132059 states to 132059 states and 222751 transitions. [2022-07-12 08:14:40,239 INFO L78 Accepts]: Start accepts. Automaton has 132059 states and 222751 transitions. Word has length 134 [2022-07-12 08:14:40,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:14:40,239 INFO L495 AbstractCegarLoop]: Abstraction has 132059 states and 222751 transitions. [2022-07-12 08:14:40,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:14:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 132059 states and 222751 transitions. [2022-07-12 08:14:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 08:14:40,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:14:40,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:14:40,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 08:14:40,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:14:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:14:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1883670420, now seen corresponding path program 1 times [2022-07-12 08:14:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:14:40,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040098437] [2022-07-12 08:14:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:14:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:14:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:40,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:14:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:40,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 08:14:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 08:14:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 08:14:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:40,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 08:14:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:14:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:14:40,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:14:40,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040098437] [2022-07-12 08:14:40,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040098437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:14:40,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:14:40,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:14:40,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60833092] [2022-07-12 08:14:40,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:14:40,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:14:40,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:14:40,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:14:40,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:14:40,377 INFO L87 Difference]: Start difference. First operand 132059 states and 222751 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)