./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.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 62ddbd8e479b9a9ff0259307914371bc7c12caf38dd9ff6b9d8872f71f8db1de --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:03:22,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:03:22,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:03:22,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:03:22,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:03:22,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:03:22,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:03:22,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:03:22,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:03:22,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:03:22,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:03:22,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:03:22,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:03:22,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:03:22,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:03:22,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:03:22,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:03:22,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:03:22,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:03:22,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:03:22,803 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:03:22,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:03:22,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:03:22,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:03:22,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:03:22,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:03:22,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:03:22,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:03:22,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:03:22,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:03:22,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:03:22,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:03:22,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:03:22,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:03:22,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:03:22,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:03:22,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:03:22,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:03:22,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:03:22,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:03:22,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:03:22,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:03:22,819 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:03:22,840 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:03:22,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:03:22,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:03:22,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:03:22,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:03:22,842 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:03:22,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:03:22,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:03:22,842 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:03:22,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:03:22,843 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:03:22,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:03:22,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:03:22,845 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:03:22,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:03:22,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:03:22,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:03:22,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:03:22,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:03:22,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:03:22,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:03:22,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:03:22,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:03:22,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:03:22,847 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:03:22,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:03:22,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:03:22,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62ddbd8e479b9a9ff0259307914371bc7c12caf38dd9ff6b9d8872f71f8db1de [2022-07-12 07:03:23,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:03:23,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:03:23,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:03:23,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:03:23,085 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:03:23,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:03:23,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3127e5e4f/d4f63c5d64f64ad0966af4e1e02c6241/FLAG1a7e11ec0 [2022-07-12 07:03:23,583 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:03:23,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:03:23,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3127e5e4f/d4f63c5d64f64ad0966af4e1e02c6241/FLAG1a7e11ec0 [2022-07-12 07:03:23,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3127e5e4f/d4f63c5d64f64ad0966af4e1e02c6241 [2022-07-12 07:03:23,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:03:23,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:03:23,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:03:23,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:03:23,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:03:23,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:03:23" (1/1) ... [2022-07-12 07:03:23,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcc97e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:23, skipping insertion in model container [2022-07-12 07:03:23,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:03:23" (1/1) ... [2022-07-12 07:03:23,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:03:23,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:03:23,993 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8125,8138] [2022-07-12 07:03:24,025 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14955,14968] [2022-07-12 07:03:24,036 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17042,17055] [2022-07-12 07:03:24,047 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18066,18079] [2022-07-12 07:03:24,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:03:24,178 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:03:24,206 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8125,8138] [2022-07-12 07:03:24,230 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14955,14968] [2022-07-12 07:03:24,238 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17042,17055] [2022-07-12 07:03:24,241 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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18066,18079] [2022-07-12 07:03:24,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:03:24,371 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:03:24,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24 WrapperNode [2022-07-12 07:03:24,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:03:24,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:03:24,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:03:24,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:03:24,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,458 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2415 [2022-07-12 07:03:24,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:03:24,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:03:24,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:03:24,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:03:24,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:03:24,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:03:24,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:03:24,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:03:24,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (1/1) ... [2022-07-12 07:03:24,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:03:24,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:03:24,571 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 07:03:24,591 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 07:03:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:03:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:03:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:03:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:03:24,761 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:03:24,762 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:03:25,810 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:03:25,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:03:25,818 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:03:25,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:03:25 BoogieIcfgContainer [2022-07-12 07:03:25,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:03:25,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:03:25,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:03:25,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:03:25,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:03:23" (1/3) ... [2022-07-12 07:03:25,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2a891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:03:25, skipping insertion in model container [2022-07-12 07:03:25,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:03:24" (2/3) ... [2022-07-12 07:03:25,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2a891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:03:25, skipping insertion in model container [2022-07-12 07:03:25,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:03:25" (3/3) ... [2022-07-12 07:03:25,826 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:03:25,835 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:03:25,835 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-12 07:03:25,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:03:25,873 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@cf6d2a0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7519757b [2022-07-12 07:03:25,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-12 07:03:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 456 states, 451 states have (on average 1.8492239467849223) internal successors, (834), 455 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-12 07:03:25,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:25,887 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] [2022-07-12 07:03:25,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:25,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:25,891 INFO L85 PathProgramCache]: Analyzing trace with hash 26036561, now seen corresponding path program 1 times [2022-07-12 07:03:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:25,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983596937] [2022-07-12 07:03:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:26,161 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 07:03:26,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:26,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983596937] [2022-07-12 07:03:26,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983596937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:26,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:26,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:03:26,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847643749] [2022-07-12 07:03:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:26,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:03:26,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:26,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:03:26,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:03:26,199 INFO L87 Difference]: Start difference. First operand has 456 states, 451 states have (on average 1.8492239467849223) internal successors, (834), 455 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:26,615 INFO L93 Difference]: Finished difference Result 833 states and 1472 transitions. [2022-07-12 07:03:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:03:26,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-12 07:03:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:26,631 INFO L225 Difference]: With dead ends: 833 [2022-07-12 07:03:26,631 INFO L226 Difference]: Without dead ends: 484 [2022-07-12 07:03:26,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:26,639 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 2293 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:26,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 576 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:03:26,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-07-12 07:03:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2022-07-12 07:03:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 474 states have (on average 1.3755274261603376) internal successors, (652), 477 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 652 transitions. [2022-07-12 07:03:26,719 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 652 transitions. Word has length 50 [2022-07-12 07:03:26,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:26,719 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 652 transitions. [2022-07-12 07:03:26,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 652 transitions. [2022-07-12 07:03:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 07:03:26,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:26,725 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] [2022-07-12 07:03:26,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:03:26,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:26,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:26,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1543870192, now seen corresponding path program 1 times [2022-07-12 07:03:26,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:26,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259452693] [2022-07-12 07:03:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:26,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:26,787 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 07:03:26,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:26,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259452693] [2022-07-12 07:03:26,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259452693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:26,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:26,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:26,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261267300] [2022-07-12 07:03:26,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:26,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:26,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:26,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:26,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:26,792 INFO L87 Difference]: Start difference. First operand 478 states and 652 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:26,838 INFO L93 Difference]: Finished difference Result 938 states and 1336 transitions. [2022-07-12 07:03:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-12 07:03:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:26,842 INFO L225 Difference]: With dead ends: 938 [2022-07-12 07:03:26,842 INFO L226 Difference]: Without dead ends: 684 [2022-07-12 07:03:26,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:26,845 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 272 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:26,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 860 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-07-12 07:03:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 678. [2022-07-12 07:03:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 674 states have (on average 1.4080118694362018) internal successors, (949), 677 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:26,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 949 transitions. [2022-07-12 07:03:26,884 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 949 transitions. Word has length 51 [2022-07-12 07:03:26,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:26,886 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 949 transitions. [2022-07-12 07:03:26,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 949 transitions. [2022-07-12 07:03:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 07:03:26,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:26,889 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] [2022-07-12 07:03:26,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:03:26,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:26,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash -359372662, now seen corresponding path program 1 times [2022-07-12 07:03:26,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:26,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189929312] [2022-07-12 07:03:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:26,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:26,946 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 07:03:26,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:26,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189929312] [2022-07-12 07:03:26,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189929312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:26,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:26,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461211561] [2022-07-12 07:03:26,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:26,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:26,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:26,959 INFO L87 Difference]: Start difference. First operand 678 states and 949 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:27,013 INFO L93 Difference]: Finished difference Result 1307 states and 1856 transitions. [2022-07-12 07:03:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-12 07:03:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:27,018 INFO L225 Difference]: With dead ends: 1307 [2022-07-12 07:03:27,018 INFO L226 Difference]: Without dead ends: 917 [2022-07-12 07:03:27,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:27,022 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 366 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:27,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 932 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:27,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-07-12 07:03:27,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 907. [2022-07-12 07:03:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 903 states have (on average 1.3820598006644518) internal successors, (1248), 906 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1248 transitions. [2022-07-12 07:03:27,072 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1248 transitions. Word has length 51 [2022-07-12 07:03:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:27,072 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1248 transitions. [2022-07-12 07:03:27,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1248 transitions. [2022-07-12 07:03:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 07:03:27,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:27,074 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] [2022-07-12 07:03:27,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:03:27,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1979749037, now seen corresponding path program 1 times [2022-07-12 07:03:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:27,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109152830] [2022-07-12 07:03:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:27,128 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 07:03:27,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:27,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109152830] [2022-07-12 07:03:27,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109152830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:27,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:27,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:27,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290641985] [2022-07-12 07:03:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:27,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:27,130 INFO L87 Difference]: Start difference. First operand 907 states and 1248 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:27,228 INFO L93 Difference]: Finished difference Result 1892 states and 2673 transitions. [2022-07-12 07:03:27,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:27,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-12 07:03:27,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:27,233 INFO L225 Difference]: With dead ends: 1892 [2022-07-12 07:03:27,233 INFO L226 Difference]: Without dead ends: 1391 [2022-07-12 07:03:27,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:27,235 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 263 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:27,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 924 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2022-07-12 07:03:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1384. [2022-07-12 07:03:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1380 states have (on average 1.3898550724637682) internal successors, (1918), 1383 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1918 transitions. [2022-07-12 07:03:27,319 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1918 transitions. Word has length 51 [2022-07-12 07:03:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:27,321 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1918 transitions. [2022-07-12 07:03:27,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1918 transitions. [2022-07-12 07:03:27,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 07:03:27,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:27,322 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] [2022-07-12 07:03:27,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:03:27,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2124032919, now seen corresponding path program 1 times [2022-07-12 07:03:27,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:27,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212791199] [2022-07-12 07:03:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:27,385 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 07:03:27,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:27,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212791199] [2022-07-12 07:03:27,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212791199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:27,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:27,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:03:27,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315367947] [2022-07-12 07:03:27,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:27,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:03:27,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:27,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:03:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:03:27,387 INFO L87 Difference]: Start difference. First operand 1384 states and 1918 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:27,668 INFO L93 Difference]: Finished difference Result 2979 states and 4184 transitions. [2022-07-12 07:03:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:03:27,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-12 07:03:27,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:27,674 INFO L225 Difference]: With dead ends: 2979 [2022-07-12 07:03:27,674 INFO L226 Difference]: Without dead ends: 1766 [2022-07-12 07:03:27,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:27,678 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 1529 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:27,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 371 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:03:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-07-12 07:03:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1754. [2022-07-12 07:03:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1750 states have (on average 1.3982857142857144) internal successors, (2447), 1753 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2447 transitions. [2022-07-12 07:03:27,792 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2447 transitions. Word has length 51 [2022-07-12 07:03:27,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:27,792 INFO L495 AbstractCegarLoop]: Abstraction has 1754 states and 2447 transitions. [2022-07-12 07:03:27,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:27,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2447 transitions. [2022-07-12 07:03:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 07:03:27,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:27,795 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] [2022-07-12 07:03:27,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:03:27,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1035105163, now seen corresponding path program 1 times [2022-07-12 07:03:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:27,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122520800] [2022-07-12 07:03:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:27,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:27,860 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 07:03:27,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:27,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122520800] [2022-07-12 07:03:27,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122520800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:27,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:27,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:03:27,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851855159] [2022-07-12 07:03:27,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:27,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:03:27,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:27,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:03:27,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:03:27,863 INFO L87 Difference]: Start difference. First operand 1754 states and 2447 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:28,165 INFO L93 Difference]: Finished difference Result 3899 states and 5482 transitions. [2022-07-12 07:03:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:03:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-07-12 07:03:28,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:28,173 INFO L225 Difference]: With dead ends: 3899 [2022-07-12 07:03:28,173 INFO L226 Difference]: Without dead ends: 2316 [2022-07-12 07:03:28,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:28,178 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1372 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:28,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 340 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:03:28,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-07-12 07:03:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2300. [2022-07-12 07:03:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 2296 states have (on average 1.3937282229965158) internal successors, (3200), 2299 states have internal predecessors, (3200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3200 transitions. [2022-07-12 07:03:28,308 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3200 transitions. Word has length 52 [2022-07-12 07:03:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:28,309 INFO L495 AbstractCegarLoop]: Abstraction has 2300 states and 3200 transitions. [2022-07-12 07:03:28,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3200 transitions. [2022-07-12 07:03:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 07:03:28,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:28,311 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] [2022-07-12 07:03:28,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:03:28,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash 825819079, now seen corresponding path program 1 times [2022-07-12 07:03:28,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:28,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996568064] [2022-07-12 07:03:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:28,373 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 07:03:28,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:28,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996568064] [2022-07-12 07:03:28,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996568064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:28,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:28,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:03:28,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530981332] [2022-07-12 07:03:28,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:28,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:03:28,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:28,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:03:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:28,376 INFO L87 Difference]: Start difference. First operand 2300 states and 3200 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:29,076 INFO L93 Difference]: Finished difference Result 7352 states and 10455 transitions. [2022-07-12 07:03:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:03:29,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-07-12 07:03:29,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:29,092 INFO L225 Difference]: With dead ends: 7352 [2022-07-12 07:03:29,093 INFO L226 Difference]: Without dead ends: 6322 [2022-07-12 07:03:29,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:03:29,098 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 2722 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:29,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 604 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:03:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6322 states. [2022-07-12 07:03:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6322 to 2314. [2022-07-12 07:03:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2310 states have (on average 1.3930735930735931) internal successors, (3218), 2313 states have internal predecessors, (3218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3218 transitions. [2022-07-12 07:03:29,294 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3218 transitions. Word has length 53 [2022-07-12 07:03:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:29,294 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 3218 transitions. [2022-07-12 07:03:29,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3218 transitions. [2022-07-12 07:03:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 07:03:29,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:29,296 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] [2022-07-12 07:03:29,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:03:29,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:29,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:29,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1519774840, now seen corresponding path program 1 times [2022-07-12 07:03:29,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:29,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620933581] [2022-07-12 07:03:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:29,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:29,349 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 07:03:29,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:29,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620933581] [2022-07-12 07:03:29,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620933581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:29,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:29,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:03:29,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435746817] [2022-07-12 07:03:29,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:29,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:03:29,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:29,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:03:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:29,351 INFO L87 Difference]: Start difference. First operand 2314 states and 3218 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:30,372 INFO L93 Difference]: Finished difference Result 8112 states and 11565 transitions. [2022-07-12 07:03:30,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:03:30,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-07-12 07:03:30,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:30,393 INFO L225 Difference]: With dead ends: 8112 [2022-07-12 07:03:30,393 INFO L226 Difference]: Without dead ends: 7269 [2022-07-12 07:03:30,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:03:30,396 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 2035 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:30,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 765 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:03:30,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2022-07-12 07:03:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 2336. [2022-07-12 07:03:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2332 states have (on average 1.3932246998284734) internal successors, (3249), 2335 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3249 transitions. [2022-07-12 07:03:30,606 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3249 transitions. Word has length 53 [2022-07-12 07:03:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:30,607 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 3249 transitions. [2022-07-12 07:03:30,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3249 transitions. [2022-07-12 07:03:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 07:03:30,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:30,609 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] [2022-07-12 07:03:30,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:03:30,609 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:30,610 INFO L85 PathProgramCache]: Analyzing trace with hash -461927258, now seen corresponding path program 1 times [2022-07-12 07:03:30,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:30,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820224228] [2022-07-12 07:03:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:30,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:30,655 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 07:03:30,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:30,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820224228] [2022-07-12 07:03:30,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820224228] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:30,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:30,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:03:30,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367003806] [2022-07-12 07:03:30,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:30,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:03:30,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:30,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:03:30,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:30,657 INFO L87 Difference]: Start difference. First operand 2336 states and 3249 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:31,906 INFO L93 Difference]: Finished difference Result 9735 states and 13865 transitions. [2022-07-12 07:03:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:03:31,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-07-12 07:03:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:31,938 INFO L225 Difference]: With dead ends: 9735 [2022-07-12 07:03:31,938 INFO L226 Difference]: Without dead ends: 8767 [2022-07-12 07:03:31,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:03:31,942 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 3180 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3180 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:31,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3180 Valid, 658 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:03:31,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8767 states. [2022-07-12 07:03:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8767 to 2370. [2022-07-12 07:03:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2366 states have (on average 1.3918005071851225) internal successors, (3293), 2369 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:32,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 3293 transitions. [2022-07-12 07:03:32,184 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 3293 transitions. Word has length 53 [2022-07-12 07:03:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:32,184 INFO L495 AbstractCegarLoop]: Abstraction has 2370 states and 3293 transitions. [2022-07-12 07:03:32,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 3293 transitions. [2022-07-12 07:03:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 07:03:32,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:32,187 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] [2022-07-12 07:03:32,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:03:32,187 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:32,188 INFO L85 PathProgramCache]: Analyzing trace with hash -719043471, now seen corresponding path program 1 times [2022-07-12 07:03:32,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:32,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555059142] [2022-07-12 07:03:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:32,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:32,303 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 07:03:32,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:32,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555059142] [2022-07-12 07:03:32,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555059142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:32,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:32,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:03:32,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311752596] [2022-07-12 07:03:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:32,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:03:32,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:32,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:03:32,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:03:32,308 INFO L87 Difference]: Start difference. First operand 2370 states and 3293 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:33,248 INFO L93 Difference]: Finished difference Result 5779 states and 8214 transitions. [2022-07-12 07:03:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:03:33,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-07-12 07:03:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:33,256 INFO L225 Difference]: With dead ends: 5779 [2022-07-12 07:03:33,256 INFO L226 Difference]: Without dead ends: 4241 [2022-07-12 07:03:33,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:03:33,259 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 2449 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:33,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 946 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:03:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2022-07-12 07:03:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 2280. [2022-07-12 07:03:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 2276 states have (on average 1.390597539543058) internal successors, (3165), 2279 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:33,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3165 transitions. [2022-07-12 07:03:33,527 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3165 transitions. Word has length 54 [2022-07-12 07:03:33,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:33,527 INFO L495 AbstractCegarLoop]: Abstraction has 2280 states and 3165 transitions. [2022-07-12 07:03:33,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:33,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3165 transitions. [2022-07-12 07:03:33,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 07:03:33,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:33,529 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] [2022-07-12 07:03:33,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:03:33,529 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:33,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash 465454059, now seen corresponding path program 1 times [2022-07-12 07:03:33,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:33,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597366700] [2022-07-12 07:03:33,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:33,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:33,610 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 07:03:33,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:33,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597366700] [2022-07-12 07:03:33,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597366700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:33,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:33,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:03:33,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173060834] [2022-07-12 07:03:33,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:33,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:03:33,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:33,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:03:33,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:03:33,612 INFO L87 Difference]: Start difference. First operand 2280 states and 3165 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:34,950 INFO L93 Difference]: Finished difference Result 7077 states and 10098 transitions. [2022-07-12 07:03:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:03:34,951 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-07-12 07:03:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:34,958 INFO L225 Difference]: With dead ends: 7077 [2022-07-12 07:03:34,958 INFO L226 Difference]: Without dead ends: 5699 [2022-07-12 07:03:34,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:03:34,960 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 2142 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:34,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 1563 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:03:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2022-07-12 07:03:35,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 2251. [2022-07-12 07:03:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 2247 states have (on average 1.3902981753449044) internal successors, (3124), 2250 states have internal predecessors, (3124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3124 transitions. [2022-07-12 07:03:35,264 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3124 transitions. Word has length 54 [2022-07-12 07:03:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:35,265 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 3124 transitions. [2022-07-12 07:03:35,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3124 transitions. [2022-07-12 07:03:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 07:03:35,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:35,267 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] [2022-07-12 07:03:35,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:03:35,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:35,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1085167472, now seen corresponding path program 1 times [2022-07-12 07:03:35,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:35,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223691253] [2022-07-12 07:03:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:35,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:35,334 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 07:03:35,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:35,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223691253] [2022-07-12 07:03:35,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223691253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:35,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:35,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:03:35,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156421446] [2022-07-12 07:03:35,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:35,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:03:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:35,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:03:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:03:35,336 INFO L87 Difference]: Start difference. First operand 2251 states and 3124 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:36,600 INFO L93 Difference]: Finished difference Result 5391 states and 7658 transitions. [2022-07-12 07:03:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:03:36,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-07-12 07:03:36,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:36,607 INFO L225 Difference]: With dead ends: 5391 [2022-07-12 07:03:36,608 INFO L226 Difference]: Without dead ends: 5386 [2022-07-12 07:03:36,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:03:36,609 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1237 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:36,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1233 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:03:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2022-07-12 07:03:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 2251. [2022-07-12 07:03:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 2247 states have (on average 1.3894080996884735) internal successors, (3122), 2250 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:36,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3122 transitions. [2022-07-12 07:03:36,916 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3122 transitions. Word has length 54 [2022-07-12 07:03:36,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:36,916 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 3122 transitions. [2022-07-12 07:03:36,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3122 transitions. [2022-07-12 07:03:36,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 07:03:36,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:36,918 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] [2022-07-12 07:03:36,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:03:36,918 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:36,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash -344500623, now seen corresponding path program 1 times [2022-07-12 07:03:36,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:36,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783914307] [2022-07-12 07:03:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:36,953 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 07:03:36,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:36,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783914307] [2022-07-12 07:03:36,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783914307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:36,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:36,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:36,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865673477] [2022-07-12 07:03:36,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:36,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:36,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:36,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:36,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:36,956 INFO L87 Difference]: Start difference. First operand 2251 states and 3122 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:37,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:37,232 INFO L93 Difference]: Finished difference Result 3193 states and 4471 transitions. [2022-07-12 07:03:37,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:37,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-07-12 07:03:37,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:37,236 INFO L225 Difference]: With dead ends: 3193 [2022-07-12 07:03:37,236 INFO L226 Difference]: Without dead ends: 2258 [2022-07-12 07:03:37,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:37,238 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 224 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:37,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 798 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2022-07-12 07:03:37,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2251. [2022-07-12 07:03:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 2247 states have (on average 1.3760569648420116) internal successors, (3092), 2250 states have internal predecessors, (3092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3092 transitions. [2022-07-12 07:03:37,541 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3092 transitions. Word has length 55 [2022-07-12 07:03:37,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:37,541 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 3092 transitions. [2022-07-12 07:03:37,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3092 transitions. [2022-07-12 07:03:37,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 07:03:37,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:37,546 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] [2022-07-12 07:03:37,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:03:37,546 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:37,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:37,547 INFO L85 PathProgramCache]: Analyzing trace with hash 29096373, now seen corresponding path program 1 times [2022-07-12 07:03:37,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:37,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991256434] [2022-07-12 07:03:37,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:37,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:37,592 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 07:03:37,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:37,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991256434] [2022-07-12 07:03:37,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991256434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:37,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:37,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:37,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251335757] [2022-07-12 07:03:37,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:37,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:37,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:37,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:37,594 INFO L87 Difference]: Start difference. First operand 2251 states and 3092 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:37,893 INFO L93 Difference]: Finished difference Result 3252 states and 4507 transitions. [2022-07-12 07:03:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:37,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-07-12 07:03:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:37,898 INFO L225 Difference]: With dead ends: 3252 [2022-07-12 07:03:37,898 INFO L226 Difference]: Without dead ends: 2257 [2022-07-12 07:03:37,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:37,900 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 240 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:37,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 799 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-07-12 07:03:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2251. [2022-07-12 07:03:38,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 2247 states have (on average 1.3635959056519804) internal successors, (3064), 2250 states have internal predecessors, (3064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3064 transitions. [2022-07-12 07:03:38,268 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3064 transitions. Word has length 55 [2022-07-12 07:03:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:38,268 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 3064 transitions. [2022-07-12 07:03:38,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3064 transitions. [2022-07-12 07:03:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 07:03:38,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:38,272 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] [2022-07-12 07:03:38,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:03:38,273 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:38,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:38,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1813019801, now seen corresponding path program 1 times [2022-07-12 07:03:38,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:38,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175701771] [2022-07-12 07:03:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:38,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:38,300 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 07:03:38,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:38,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175701771] [2022-07-12 07:03:38,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175701771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:38,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:38,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:38,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602958053] [2022-07-12 07:03:38,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:38,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:38,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:38,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:38,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:38,302 INFO L87 Difference]: Start difference. First operand 2251 states and 3064 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:38,626 INFO L93 Difference]: Finished difference Result 3332 states and 4570 transitions. [2022-07-12 07:03:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:38,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-07-12 07:03:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:38,637 INFO L225 Difference]: With dead ends: 3332 [2022-07-12 07:03:38,637 INFO L226 Difference]: Without dead ends: 2242 [2022-07-12 07:03:38,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:38,642 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 259 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:38,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 814 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-07-12 07:03:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2236. [2022-07-12 07:03:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2232 states have (on average 1.3440860215053763) internal successors, (3000), 2235 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3000 transitions. [2022-07-12 07:03:39,017 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3000 transitions. Word has length 55 [2022-07-12 07:03:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:39,017 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 3000 transitions. [2022-07-12 07:03:39,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3000 transitions. [2022-07-12 07:03:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 07:03:39,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:39,019 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] [2022-07-12 07:03:39,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:03:39,020 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:39,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1260356730, now seen corresponding path program 1 times [2022-07-12 07:03:39,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:39,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810132850] [2022-07-12 07:03:39,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:39,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:39,052 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 07:03:39,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:39,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810132850] [2022-07-12 07:03:39,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810132850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:39,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:39,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379412452] [2022-07-12 07:03:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:39,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:39,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:39,054 INFO L87 Difference]: Start difference. First operand 2236 states and 3000 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:39,489 INFO L93 Difference]: Finished difference Result 3997 states and 5436 transitions. [2022-07-12 07:03:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:39,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-07-12 07:03:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:39,493 INFO L225 Difference]: With dead ends: 3997 [2022-07-12 07:03:39,493 INFO L226 Difference]: Without dead ends: 2740 [2022-07-12 07:03:39,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:39,495 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 348 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:39,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 540 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-07-12 07:03:39,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2054. [2022-07-12 07:03:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 2050 states have (on average 1.3482926829268294) internal successors, (2764), 2053 states have internal predecessors, (2764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:39,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2764 transitions. [2022-07-12 07:03:39,803 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2764 transitions. Word has length 56 [2022-07-12 07:03:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:39,803 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 2764 transitions. [2022-07-12 07:03:39,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2764 transitions. [2022-07-12 07:03:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 07:03:39,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:39,805 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] [2022-07-12 07:03:39,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:03:39,806 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:39,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:39,806 INFO L85 PathProgramCache]: Analyzing trace with hash -171160754, now seen corresponding path program 1 times [2022-07-12 07:03:39,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:39,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222181815] [2022-07-12 07:03:39,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:39,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:39,834 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 07:03:39,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222181815] [2022-07-12 07:03:39,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222181815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:39,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:39,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679395428] [2022-07-12 07:03:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:39,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:39,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:39,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:39,836 INFO L87 Difference]: Start difference. First operand 2054 states and 2764 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:40,239 INFO L93 Difference]: Finished difference Result 3721 states and 5059 transitions. [2022-07-12 07:03:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:40,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-07-12 07:03:40,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:40,242 INFO L225 Difference]: With dead ends: 3721 [2022-07-12 07:03:40,242 INFO L226 Difference]: Without dead ends: 2477 [2022-07-12 07:03:40,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:40,244 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 300 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:40,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 458 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:40,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2022-07-12 07:03:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 1932. [2022-07-12 07:03:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1928 states have (on average 1.3526970954356847) internal successors, (2608), 1931 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2608 transitions. [2022-07-12 07:03:40,521 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2608 transitions. Word has length 57 [2022-07-12 07:03:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:40,521 INFO L495 AbstractCegarLoop]: Abstraction has 1932 states and 2608 transitions. [2022-07-12 07:03:40,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:40,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2608 transitions. [2022-07-12 07:03:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 07:03:40,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:40,523 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] [2022-07-12 07:03:40,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:03:40,524 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:40,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:40,524 INFO L85 PathProgramCache]: Analyzing trace with hash -544179575, now seen corresponding path program 1 times [2022-07-12 07:03:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:40,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102287767] [2022-07-12 07:03:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:40,759 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 07:03:40,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:40,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102287767] [2022-07-12 07:03:40,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102287767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:40,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:40,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:03:40,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319536894] [2022-07-12 07:03:40,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:40,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:03:40,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:40,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:03:40,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:03:40,761 INFO L87 Difference]: Start difference. First operand 1932 states and 2608 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:42,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:42,196 INFO L93 Difference]: Finished difference Result 3983 states and 5456 transitions. [2022-07-12 07:03:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:03:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-07-12 07:03:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:42,202 INFO L225 Difference]: With dead ends: 3983 [2022-07-12 07:03:42,202 INFO L226 Difference]: Without dead ends: 3777 [2022-07-12 07:03:42,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2022-07-12 07:03:42,204 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 2564 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2564 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:42,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2564 Valid, 3210 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:03:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2022-07-12 07:03:42,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 1907. [2022-07-12 07:03:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1904 states have (on average 1.3539915966386555) internal successors, (2578), 1906 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2578 transitions. [2022-07-12 07:03:42,525 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2578 transitions. Word has length 57 [2022-07-12 07:03:42,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:42,526 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 2578 transitions. [2022-07-12 07:03:42,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:42,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2578 transitions. [2022-07-12 07:03:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 07:03:42,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:42,527 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] [2022-07-12 07:03:42,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:03:42,528 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:42,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash 303331698, now seen corresponding path program 1 times [2022-07-12 07:03:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:42,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533917162] [2022-07-12 07:03:42,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:42,765 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 07:03:42,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533917162] [2022-07-12 07:03:42,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533917162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:42,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:42,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:03:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799174248] [2022-07-12 07:03:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:42,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:03:42,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:03:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:03:42,766 INFO L87 Difference]: Start difference. First operand 1907 states and 2578 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:44,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:44,112 INFO L93 Difference]: Finished difference Result 3147 states and 4298 transitions. [2022-07-12 07:03:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:03:44,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-07-12 07:03:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:44,116 INFO L225 Difference]: With dead ends: 3147 [2022-07-12 07:03:44,116 INFO L226 Difference]: Without dead ends: 3086 [2022-07-12 07:03:44,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:03:44,117 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 2055 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:44,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 2761 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:03:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2022-07-12 07:03:44,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1895. [2022-07-12 07:03:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1893 states have (on average 1.3544638140517697) internal successors, (2564), 1894 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:44,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2564 transitions. [2022-07-12 07:03:44,410 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2564 transitions. Word has length 57 [2022-07-12 07:03:44,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:44,410 INFO L495 AbstractCegarLoop]: Abstraction has 1895 states and 2564 transitions. [2022-07-12 07:03:44,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:44,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2564 transitions. [2022-07-12 07:03:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 07:03:44,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:44,412 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] [2022-07-12 07:03:44,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:03:44,412 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:44,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash 839862953, now seen corresponding path program 1 times [2022-07-12 07:03:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:44,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352341418] [2022-07-12 07:03:44,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:44,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:44,617 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 07:03:44,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:44,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352341418] [2022-07-12 07:03:44,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352341418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:44,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:44,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:03:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834123113] [2022-07-12 07:03:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:44,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:03:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:03:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:03:44,618 INFO L87 Difference]: Start difference. First operand 1895 states and 2564 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:46,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:46,103 INFO L93 Difference]: Finished difference Result 4087 states and 5601 transitions. [2022-07-12 07:03:46,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:03:46,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-07-12 07:03:46,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:46,108 INFO L225 Difference]: With dead ends: 4087 [2022-07-12 07:03:46,108 INFO L226 Difference]: Without dead ends: 3873 [2022-07-12 07:03:46,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:03:46,109 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 2607 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:46,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 2683 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:03:46,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2022-07-12 07:03:46,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 1844. [2022-07-12 07:03:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1843 states have (on average 1.3575691806836678) internal successors, (2502), 1843 states have internal predecessors, (2502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:46,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2502 transitions. [2022-07-12 07:03:46,461 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2502 transitions. Word has length 57 [2022-07-12 07:03:46,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:46,461 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2502 transitions. [2022-07-12 07:03:46,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:46,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2502 transitions. [2022-07-12 07:03:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:03:46,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:46,464 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] [2022-07-12 07:03:46,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:03:46,464 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash 485032383, now seen corresponding path program 1 times [2022-07-12 07:03:46,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:46,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302101335] [2022-07-12 07:03:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:46,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:46,543 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 07:03:46,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:46,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302101335] [2022-07-12 07:03:46,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302101335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:46,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:46,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 07:03:46,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394718441] [2022-07-12 07:03:46,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:46,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:03:46,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:46,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:03:46,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:03:46,545 INFO L87 Difference]: Start difference. First operand 1844 states and 2502 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:47,515 INFO L93 Difference]: Finished difference Result 4234 states and 5899 transitions. [2022-07-12 07:03:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:03:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:03:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:47,520 INFO L225 Difference]: With dead ends: 4234 [2022-07-12 07:03:47,520 INFO L226 Difference]: Without dead ends: 3116 [2022-07-12 07:03:47,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:03:47,523 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1071 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:47,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 636 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:47,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-12 07:03:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2748. [2022-07-12 07:03:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2747 states have (on average 1.358937022206043) internal successors, (3733), 2747 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3733 transitions. [2022-07-12 07:03:48,326 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3733 transitions. Word has length 66 [2022-07-12 07:03:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:48,326 INFO L495 AbstractCegarLoop]: Abstraction has 2748 states and 3733 transitions. [2022-07-12 07:03:48,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3733 transitions. [2022-07-12 07:03:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:03:48,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:48,330 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] [2022-07-12 07:03:48,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:03:48,330 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash -656464105, now seen corresponding path program 1 times [2022-07-12 07:03:48,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:48,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846885255] [2022-07-12 07:03:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:48,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:48,393 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 07:03:48,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:48,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846885255] [2022-07-12 07:03:48,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846885255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:48,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:48,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 07:03:48,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245685502] [2022-07-12 07:03:48,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:48,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:03:48,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:48,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:03:48,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:03:48,395 INFO L87 Difference]: Start difference. First operand 2748 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:49,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:49,223 INFO L93 Difference]: Finished difference Result 2754 states and 3736 transitions. [2022-07-12 07:03:49,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:03:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:03:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:49,229 INFO L225 Difference]: With dead ends: 2754 [2022-07-12 07:03:49,229 INFO L226 Difference]: Without dead ends: 2283 [2022-07-12 07:03:49,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:03:49,230 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 580 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:49,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 694 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:03:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2022-07-12 07:03:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2279. [2022-07-12 07:03:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 1.36215978928885) internal successors, (3103), 2278 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3103 transitions. [2022-07-12 07:03:50,025 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3103 transitions. Word has length 67 [2022-07-12 07:03:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:50,026 INFO L495 AbstractCegarLoop]: Abstraction has 2279 states and 3103 transitions. [2022-07-12 07:03:50,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3103 transitions. [2022-07-12 07:03:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:03:50,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:50,030 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] [2022-07-12 07:03:50,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:03:50,030 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1272488439, now seen corresponding path program 1 times [2022-07-12 07:03:50,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:50,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794475768] [2022-07-12 07:03:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:50,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:50,067 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 07:03:50,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:50,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794475768] [2022-07-12 07:03:50,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794475768] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:50,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:50,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:50,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483184582] [2022-07-12 07:03:50,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:50,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:50,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:50,069 INFO L87 Difference]: Start difference. First operand 2279 states and 3103 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:51,341 INFO L93 Difference]: Finished difference Result 5375 states and 7427 transitions. [2022-07-12 07:03:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:51,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-12 07:03:51,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:51,348 INFO L225 Difference]: With dead ends: 5375 [2022-07-12 07:03:51,348 INFO L226 Difference]: Without dead ends: 3757 [2022-07-12 07:03:51,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:51,353 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 123 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:51,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-07-12 07:03:52,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3507. [2022-07-12 07:03:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3506 states have (on average 1.369937250427838) internal successors, (4803), 3506 states have internal predecessors, (4803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4803 transitions. [2022-07-12 07:03:52,505 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4803 transitions. Word has length 68 [2022-07-12 07:03:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:52,505 INFO L495 AbstractCegarLoop]: Abstraction has 3507 states and 4803 transitions. [2022-07-12 07:03:52,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4803 transitions. [2022-07-12 07:03:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 07:03:52,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:52,508 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] [2022-07-12 07:03:52,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:03:52,509 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1794430615, now seen corresponding path program 1 times [2022-07-12 07:03:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:52,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269665477] [2022-07-12 07:03:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:52,542 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 07:03:52,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:52,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269665477] [2022-07-12 07:03:52,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269665477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:52,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:52,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:52,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626960573] [2022-07-12 07:03:52,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:52,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:52,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:52,544 INFO L87 Difference]: Start difference. First operand 3507 states and 4803 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:54,207 INFO L93 Difference]: Finished difference Result 8767 states and 12085 transitions. [2022-07-12 07:03:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-12 07:03:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:54,214 INFO L225 Difference]: With dead ends: 8767 [2022-07-12 07:03:54,214 INFO L226 Difference]: Without dead ends: 5783 [2022-07-12 07:03:54,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:54,217 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 118 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:54,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 553 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:54,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5783 states. [2022-07-12 07:03:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5783 to 5365. [2022-07-12 07:03:55,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 5364 states have (on average 1.360738255033557) internal successors, (7299), 5364 states have internal predecessors, (7299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 7299 transitions. [2022-07-12 07:03:55,647 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 7299 transitions. Word has length 70 [2022-07-12 07:03:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:03:55,648 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 7299 transitions. [2022-07-12 07:03:55,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 7299 transitions. [2022-07-12 07:03:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 07:03:55,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:03:55,650 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] [2022-07-12 07:03:55,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:03:55,650 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:03:55,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:03:55,650 INFO L85 PathProgramCache]: Analyzing trace with hash -530798665, now seen corresponding path program 1 times [2022-07-12 07:03:55,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:03:55,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338312353] [2022-07-12 07:03:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:03:55,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:03:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:03:55,684 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 07:03:55,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:03:55,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338312353] [2022-07-12 07:03:55,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338312353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:03:55,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:03:55,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:03:55,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177402334] [2022-07-12 07:03:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:03:55,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:03:55,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:03:55,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:03:55,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:55,686 INFO L87 Difference]: Start difference. First operand 5365 states and 7299 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:03:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:03:58,299 INFO L93 Difference]: Finished difference Result 14489 states and 19829 transitions. [2022-07-12 07:03:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:03:58,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-12 07:03:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:03:58,315 INFO L225 Difference]: With dead ends: 14489 [2022-07-12 07:03:58,315 INFO L226 Difference]: Without dead ends: 9647 [2022-07-12 07:03:58,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:03:58,321 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 97 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:03:58,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 528 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:03:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9647 states. [2022-07-12 07:04:00,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9647 to 8813. [2022-07-12 07:04:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8812 states have (on average 1.3571266454834316) internal successors, (11959), 8812 states have internal predecessors, (11959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:00,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 11959 transitions. [2022-07-12 07:04:00,854 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 11959 transitions. Word has length 70 [2022-07-12 07:04:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:04:00,855 INFO L495 AbstractCegarLoop]: Abstraction has 8813 states and 11959 transitions. [2022-07-12 07:04:00,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 11959 transitions. [2022-07-12 07:04:00,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 07:04:00,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:04:00,857 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] [2022-07-12 07:04:00,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:04:00,857 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:04:00,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:04:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1176069985, now seen corresponding path program 1 times [2022-07-12 07:04:00,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:04:00,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096298452] [2022-07-12 07:04:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:04:00,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:04:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:04:00,908 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 07:04:00,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:04:00,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096298452] [2022-07-12 07:04:00,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096298452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:04:00,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:04:00,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:04:00,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022601471] [2022-07-12 07:04:00,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:04:00,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:04:00,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:04:00,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:04:00,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:04:00,910 INFO L87 Difference]: Start difference. First operand 8813 states and 11959 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:06,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:04:06,733 INFO L93 Difference]: Finished difference Result 18941 states and 25281 transitions. [2022-07-12 07:04:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:04:06,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-12 07:04:06,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:04:06,759 INFO L225 Difference]: With dead ends: 18941 [2022-07-12 07:04:06,759 INFO L226 Difference]: Without dead ends: 18939 [2022-07-12 07:04:06,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:04:06,764 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 344 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:04:06,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1309 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:04:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18939 states. [2022-07-12 07:04:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18939 to 9725. [2022-07-12 07:04:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9725 states, 9724 states have (on average 1.3236322501028384) internal successors, (12871), 9724 states have internal predecessors, (12871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9725 states to 9725 states and 12871 transitions. [2022-07-12 07:04:09,823 INFO L78 Accepts]: Start accepts. Automaton has 9725 states and 12871 transitions. Word has length 72 [2022-07-12 07:04:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:04:09,823 INFO L495 AbstractCegarLoop]: Abstraction has 9725 states and 12871 transitions. [2022-07-12 07:04:09,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 9725 states and 12871 transitions. [2022-07-12 07:04:09,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 07:04:09,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:04:09,825 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] [2022-07-12 07:04:09,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:04:09,825 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:04:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:04:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 406807320, now seen corresponding path program 1 times [2022-07-12 07:04:09,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:04:09,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826285416] [2022-07-12 07:04:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:04:09,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:04:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:04:09,851 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 07:04:09,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:04:09,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826285416] [2022-07-12 07:04:09,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826285416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:04:09,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:04:09,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:04:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674331513] [2022-07-12 07:04:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:04:09,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:04:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:04:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:04:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:04:09,853 INFO L87 Difference]: Start difference. First operand 9725 states and 12871 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:04:14,436 INFO L93 Difference]: Finished difference Result 23589 states and 31277 transitions. [2022-07-12 07:04:14,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:04:14,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-12 07:04:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:04:14,453 INFO L225 Difference]: With dead ends: 23589 [2022-07-12 07:04:14,453 INFO L226 Difference]: Without dead ends: 14387 [2022-07-12 07:04:14,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:04:14,461 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 193 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:04:14,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 377 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:04:14,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2022-07-12 07:04:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14233. [2022-07-12 07:04:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14233 states, 14232 states have (on average 1.303752107925801) internal successors, (18555), 14232 states have internal predecessors, (18555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14233 states to 14233 states and 18555 transitions. [2022-07-12 07:04:18,839 INFO L78 Accepts]: Start accepts. Automaton has 14233 states and 18555 transitions. Word has length 73 [2022-07-12 07:04:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:04:18,839 INFO L495 AbstractCegarLoop]: Abstraction has 14233 states and 18555 transitions. [2022-07-12 07:04:18,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 14233 states and 18555 transitions. [2022-07-12 07:04:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-12 07:04:18,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:04:18,841 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] [2022-07-12 07:04:18,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 07:04:18,841 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:04:18,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:04:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1519050461, now seen corresponding path program 1 times [2022-07-12 07:04:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:04:18,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355540728] [2022-07-12 07:04:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:04:18,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:04:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:04:18,879 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 07:04:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:04:18,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355540728] [2022-07-12 07:04:18,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355540728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:04:18,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:04:18,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 07:04:18,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853734456] [2022-07-12 07:04:18,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:04:18,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:04:18,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:04:18,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:04:18,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:04:18,881 INFO L87 Difference]: Start difference. First operand 14233 states and 18555 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:04:24,448 INFO L93 Difference]: Finished difference Result 20743 states and 27195 transitions. [2022-07-12 07:04:24,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:04:24,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-12 07:04:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:04:24,469 INFO L225 Difference]: With dead ends: 20743 [2022-07-12 07:04:24,469 INFO L226 Difference]: Without dead ends: 17267 [2022-07-12 07:04:24,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:04:24,473 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 637 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:04:24,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 803 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:04:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17267 states. [2022-07-12 07:04:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17267 to 16091. [2022-07-12 07:04:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16091 states, 16090 states have (on average 1.2998756991920448) internal successors, (20915), 16090 states have internal predecessors, (20915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:29,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16091 states to 16091 states and 20915 transitions. [2022-07-12 07:04:29,538 INFO L78 Accepts]: Start accepts. Automaton has 16091 states and 20915 transitions. Word has length 74 [2022-07-12 07:04:29,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:04:29,538 INFO L495 AbstractCegarLoop]: Abstraction has 16091 states and 20915 transitions. [2022-07-12 07:04:29,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:29,538 INFO L276 IsEmpty]: Start isEmpty. Operand 16091 states and 20915 transitions. [2022-07-12 07:04:29,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-12 07:04:29,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:04:29,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:29,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 07:04:29,544 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:04:29,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:04:29,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1899335398, now seen corresponding path program 1 times [2022-07-12 07:04:29,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:04:29,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081172427] [2022-07-12 07:04:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:04:29,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:04:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:04:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 07:04:29,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:04:29,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081172427] [2022-07-12 07:04:29,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081172427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:04:29,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:04:29,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:04:29,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879092065] [2022-07-12 07:04:29,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:04:29,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:04:29,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:04:29,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:04:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:04:29,630 INFO L87 Difference]: Start difference. First operand 16091 states and 20915 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:04:46,150 INFO L93 Difference]: Finished difference Result 58864 states and 76348 transitions. [2022-07-12 07:04:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:04:46,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-12 07:04:46,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:04:46,241 INFO L225 Difference]: With dead ends: 58864 [2022-07-12 07:04:46,241 INFO L226 Difference]: Without dead ends: 51000 [2022-07-12 07:04:46,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-12 07:04:46,260 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1458 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:04:46,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1341 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:04:46,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51000 states. [2022-07-12 07:04:51,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51000 to 16033. [2022-07-12 07:04:51,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16033 states, 16032 states have (on average 1.3002120758483033) internal successors, (20845), 16032 states have internal predecessors, (20845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16033 states to 16033 states and 20845 transitions. [2022-07-12 07:04:51,857 INFO L78 Accepts]: Start accepts. Automaton has 16033 states and 20845 transitions. Word has length 92 [2022-07-12 07:04:51,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:04:51,857 INFO L495 AbstractCegarLoop]: Abstraction has 16033 states and 20845 transitions. [2022-07-12 07:04:51,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:04:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 16033 states and 20845 transitions. [2022-07-12 07:04:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-12 07:04:51,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:04:51,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:51,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 07:04:51,863 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:04:51,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:04:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1332578409, now seen corresponding path program 1 times [2022-07-12 07:04:51,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:04:51,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407404359] [2022-07-12 07:04:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:04:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:04:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:04:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 07:04:51,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:04:51,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407404359] [2022-07-12 07:04:51,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407404359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:04:51,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:04:51,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:04:51,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130652360] [2022-07-12 07:04:51,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:04:51,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:04:51,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:04:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:04:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:04:51,945 INFO L87 Difference]: Start difference. First operand 16033 states and 20845 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:05:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:05:03,699 INFO L93 Difference]: Finished difference Result 40121 states and 52033 transitions. [2022-07-12 07:05:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:05:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-12 07:05:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:05:03,748 INFO L225 Difference]: With dead ends: 40121 [2022-07-12 07:05:03,748 INFO L226 Difference]: Without dead ends: 32439 [2022-07-12 07:05:03,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:05:03,762 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1730 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:05:03,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 948 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:05:03,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32439 states. [2022-07-12 07:05:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32439 to 15999. [2022-07-12 07:05:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15999 states, 15998 states have (on average 1.3002875359419928) internal successors, (20802), 15998 states have internal predecessors, (20802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:05:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15999 states to 15999 states and 20802 transitions. [2022-07-12 07:05:09,685 INFO L78 Accepts]: Start accepts. Automaton has 15999 states and 20802 transitions. Word has length 92 [2022-07-12 07:05:09,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:05:09,686 INFO L495 AbstractCegarLoop]: Abstraction has 15999 states and 20802 transitions. [2022-07-12 07:05:09,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:05:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 15999 states and 20802 transitions. [2022-07-12 07:05:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:05:09,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:05:09,694 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:09,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 07:05:09,695 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:05:09,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:05:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1785022088, now seen corresponding path program 1 times [2022-07-12 07:05:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:05:09,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011078766] [2022-07-12 07:05:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:05:09,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:05:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:05:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:05:09,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:05:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011078766] [2022-07-12 07:05:09,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011078766] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:05:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357515180] [2022-07-12 07:05:09,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:05:09,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:05:09,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:05:09,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:05:09,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 07:05:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:05:09,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-12 07:05:09,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:05:10,791 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:05:10,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:05:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:05:11,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357515180] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:05:11,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:05:11,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 29 [2022-07-12 07:05:11,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69454201] [2022-07-12 07:05:11,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:05:11,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-12 07:05:11,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:05:11,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-12 07:05:11,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-07-12 07:05:11,596 INFO L87 Difference]: Start difference. First operand 15999 states and 20802 transitions. Second operand has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:07:10,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:07:10,834 INFO L93 Difference]: Finished difference Result 224265 states and 285579 transitions. [2022-07-12 07:07:10,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-07-12 07:07:10,834 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:07:10,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:07:11,303 INFO L225 Difference]: With dead ends: 224265 [2022-07-12 07:07:11,303 INFO L226 Difference]: Without dead ends: 216517 [2022-07-12 07:07:11,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36899 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=12438, Invalid=76664, Unknown=0, NotChecked=0, Total=89102 [2022-07-12 07:07:11,394 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 9310 mSDsluCounter, 10744 mSDsCounter, 0 mSdLazyCounter, 9923 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9310 SdHoareTripleChecker+Valid, 11256 SdHoareTripleChecker+Invalid, 10354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 9923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:07:11,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9310 Valid, 11256 Invalid, 10354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 9923 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 07:07:11,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216517 states. [2022-07-12 07:07:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216517 to 16561. [2022-07-12 07:07:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16561 states, 16560 states have (on average 1.2981280193236715) internal successors, (21497), 16560 states have internal predecessors, (21497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:07:20,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16561 states to 16561 states and 21497 transitions. [2022-07-12 07:07:20,743 INFO L78 Accepts]: Start accepts. Automaton has 16561 states and 21497 transitions. Word has length 93 [2022-07-12 07:07:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:07:20,743 INFO L495 AbstractCegarLoop]: Abstraction has 16561 states and 21497 transitions. [2022-07-12 07:07:20,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:07:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 16561 states and 21497 transitions. [2022-07-12 07:07:20,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:07:20,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:07:20,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:20,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 07:07:20,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:07:20,953 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 07:07:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:07:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash 85404025, now seen corresponding path program 1 times [2022-07-12 07:07:20,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:07:20,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242814895] [2022-07-12 07:07:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:07:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:07:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:07:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:07:21,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:07:21,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242814895] [2022-07-12 07:07:21,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242814895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:07:21,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:07:21,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 07:07:21,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88502244] [2022-07-12 07:07:21,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:07:21,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 07:07:21,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:07:21,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 07:07:21,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 07:07:21,075 INFO L87 Difference]: Start difference. First operand 16561 states and 21497 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:07:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:07:43,878 INFO L93 Difference]: Finished difference Result 52847 states and 68036 transitions. [2022-07-12 07:07:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:07:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:07:43,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:07:43,940 INFO L225 Difference]: With dead ends: 52847 [2022-07-12 07:07:43,941 INFO L226 Difference]: Without dead ends: 44341 [2022-07-12 07:07:43,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-07-12 07:07:43,958 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1956 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:07:43,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 1278 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:07:43,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44341 states.