/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:39:24,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:39:24,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:39:24,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 06:39:24,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:39:24,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:39:24,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:39:24,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 06:39:24,147 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:39:24,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:39:24,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:39:24,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:39:24,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:39:24,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:39:24,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:39:24,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:39:24,149 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:39:24,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:39:24,149 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:39:24,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:39:24,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:39:24,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:39:24,151 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:39:24,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:39:24,152 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:39:24,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:39:24,152 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:39:24,152 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:39:24,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:39:24,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:39:24,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:39:24,369 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:39:24,370 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:39:24,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-04-02 06:39:25,307 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:39:25,632 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:39:25,633 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-04-02 06:39:25,654 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4337f35fa/b4284e7edf7c48959bbead5cd9a625ed/FLAGd4cdaaf0c [2023-04-02 06:39:25,672 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4337f35fa/b4284e7edf7c48959bbead5cd9a625ed [2023-04-02 06:39:25,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:39:25,676 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:39:25,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:39:25,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:39:25,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:39:25,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:39:25" (1/1) ... [2023-04-02 06:39:25,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30229be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:25, skipping insertion in model container [2023-04-02 06:39:25,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:39:25" (1/1) ... [2023-04-02 06:39:25,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:39:25,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:39:26,116 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-04-02 06:39:26,150 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-04-02 06:39:26,156 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-04-02 06:39:26,160 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-04-02 06:39:26,168 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-04-02 06:39:26,172 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-04-02 06:39:26,186 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-04-02 06:39:26,198 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-04-02 06:39:26,202 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-04-02 06:39:26,206 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-04-02 06:39:26,219 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-04-02 06:39:26,240 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-04-02 06:39:26,244 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-04-02 06:39:26,248 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-04-02 06:39:26,257 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-04-02 06:39:26,271 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-04-02 06:39:26,294 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-04-02 06:39:26,299 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-04-02 06:39:26,307 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-04-02 06:39:26,317 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-04-02 06:39:26,332 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-04-02 06:39:26,351 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-04-02 06:39:26,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:39:26,618 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:39:26,676 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-04-02 06:39:26,685 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-04-02 06:39:26,688 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-04-02 06:39:26,691 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-04-02 06:39:26,696 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-04-02 06:39:26,699 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-04-02 06:39:26,703 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-04-02 06:39:26,709 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-04-02 06:39:26,712 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-04-02 06:39:26,717 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-04-02 06:39:26,728 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-04-02 06:39:26,742 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-04-02 06:39:26,745 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-04-02 06:39:26,748 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-04-02 06:39:26,753 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-04-02 06:39:26,761 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-04-02 06:39:26,784 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-04-02 06:39:26,787 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-04-02 06:39:26,790 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-04-02 06:39:26,797 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-04-02 06:39:26,807 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-04-02 06:39:26,818 WARN L247 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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-04-02 06:39:26,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:39:26,986 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:39:26,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26 WrapperNode [2023-04-02 06:39:26,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:39:26,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:39:26,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:39:26,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:39:26,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:26,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:39:27,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:39:27,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:39:27,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:39:27,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (1/1) ... [2023-04-02 06:39:27,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:39:27,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:39:27,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 06:39:27,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 06:39:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:39:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:39:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:39:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:39:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:39:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:39:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:39:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:39:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:39:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:39:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:39:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:39:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:39:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:39:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:39:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:39:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:39:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:39:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:39:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:39:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:39:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:39:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:39:27,471 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:39:27,473 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:39:29,561 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:39:29,576 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:39:29,576 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:39:29,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:39:29 BoogieIcfgContainer [2023-04-02 06:39:29,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:39:29,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:39:29,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:39:29,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:39:29,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:39:25" (1/3) ... [2023-04-02 06:39:29,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:39:29, skipping insertion in model container [2023-04-02 06:39:29,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:26" (2/3) ... [2023-04-02 06:39:29,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:39:29, skipping insertion in model container [2023-04-02 06:39:29,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:39:29" (3/3) ... [2023-04-02 06:39:29,588 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-04-02 06:39:29,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:39:29,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-04-02 06:39:29,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:39:29,650 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b0617ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:39:29,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-04-02 06:39:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 1137 states, 1109 states have (on average 1.854824165915239) internal successors, (2057), 1132 states have internal predecessors, (2057), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 06:39:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:39:29,673 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:29,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:29,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:29,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:29,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1890921663, now seen corresponding path program 1 times [2023-04-02 06:39:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:29,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380025076] [2023-04-02 06:39:29,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:29,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:31,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:31,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380025076] [2023-04-02 06:39:31,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380025076] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:31,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:31,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:31,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227243811] [2023-04-02 06:39:31,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:31,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:31,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:31,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:31,288 INFO L87 Difference]: Start difference. First operand has 1137 states, 1109 states have (on average 1.854824165915239) internal successors, (2057), 1132 states have internal predecessors, (2057), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:37,328 INFO L93 Difference]: Finished difference Result 1725 states and 3020 transitions. [2023-04-02 06:39:37,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2023-04-02 06:39:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:37,342 INFO L225 Difference]: With dead ends: 1725 [2023-04-02 06:39:37,342 INFO L226 Difference]: Without dead ends: 971 [2023-04-02 06:39:37,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:37,350 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 4864 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:37,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 1097 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-04-02 06:39:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-04-02 06:39:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2023-04-02 06:39:37,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 946 states have (on average 1.284355179704017) internal successors, (1215), 967 states have internal predecessors, (1215), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:37,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1218 transitions. [2023-04-02 06:39:37,453 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1218 transitions. Word has length 90 [2023-04-02 06:39:37,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:37,453 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1218 transitions. [2023-04-02 06:39:37,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1218 transitions. [2023-04-02 06:39:37,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 06:39:37,456 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:37,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:37,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:39:37,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:37,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1448021312, now seen corresponding path program 1 times [2023-04-02 06:39:37,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:37,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411992577] [2023-04-02 06:39:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:37,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:38,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:38,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411992577] [2023-04-02 06:39:38,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411992577] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:38,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199979802] [2023-04-02 06:39:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:38,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:38,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:38,519 INFO L87 Difference]: Start difference. First operand 971 states and 1218 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:42,390 INFO L93 Difference]: Finished difference Result 1545 states and 2008 transitions. [2023-04-02 06:39:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2023-04-02 06:39:42,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:42,393 INFO L225 Difference]: With dead ends: 1545 [2023-04-02 06:39:42,393 INFO L226 Difference]: Without dead ends: 801 [2023-04-02 06:39:42,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:42,395 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 3017 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:42,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3017 Valid, 599 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 06:39:42,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2023-04-02 06:39:42,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2023-04-02 06:39:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 776 states have (on average 1.324742268041237) internal successors, (1028), 797 states have internal predecessors, (1028), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1031 transitions. [2023-04-02 06:39:42,422 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1031 transitions. Word has length 91 [2023-04-02 06:39:42,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:42,422 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1031 transitions. [2023-04-02 06:39:42,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:42,422 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1031 transitions. [2023-04-02 06:39:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 06:39:42,424 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:42,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:42,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:39:42,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:42,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash -552886457, now seen corresponding path program 1 times [2023-04-02 06:39:42,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:42,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721384565] [2023-04-02 06:39:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:43,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:43,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721384565] [2023-04-02 06:39:43,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721384565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:43,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:43,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972685169] [2023-04-02 06:39:43,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:43,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:43,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:43,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:43,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:43,398 INFO L87 Difference]: Start difference. First operand 801 states and 1031 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:46,850 INFO L93 Difference]: Finished difference Result 1375 states and 1820 transitions. [2023-04-02 06:39:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:46,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2023-04-02 06:39:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:46,853 INFO L225 Difference]: With dead ends: 1375 [2023-04-02 06:39:46,853 INFO L226 Difference]: Without dead ends: 719 [2023-04-02 06:39:46,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:46,854 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 2731 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:46,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 547 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 06:39:46,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-04-02 06:39:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2023-04-02 06:39:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 694 states have (on average 1.3501440922190202) internal successors, (937), 715 states have internal predecessors, (937), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 940 transitions. [2023-04-02 06:39:46,879 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 940 transitions. Word has length 92 [2023-04-02 06:39:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:46,879 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 940 transitions. [2023-04-02 06:39:46,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 940 transitions. [2023-04-02 06:39:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 06:39:46,880 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:46,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:46,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:39:46,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:46,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1962446874, now seen corresponding path program 1 times [2023-04-02 06:39:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:46,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833041216] [2023-04-02 06:39:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:47,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:47,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833041216] [2023-04-02 06:39:47,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833041216] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:47,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:47,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:47,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121682190] [2023-04-02 06:39:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:47,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:47,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:47,868 INFO L87 Difference]: Start difference. First operand 719 states and 940 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:51,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:51,082 INFO L93 Difference]: Finished difference Result 1293 states and 1728 transitions. [2023-04-02 06:39:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:51,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2023-04-02 06:39:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:51,084 INFO L225 Difference]: With dead ends: 1293 [2023-04-02 06:39:51,084 INFO L226 Difference]: Without dead ends: 681 [2023-04-02 06:39:51,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:51,086 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2587 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:51,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 517 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:39:51,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2023-04-02 06:39:51,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2023-04-02 06:39:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 656 states have (on average 1.3628048780487805) internal successors, (894), 677 states have internal predecessors, (894), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 897 transitions. [2023-04-02 06:39:51,111 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 897 transitions. Word has length 93 [2023-04-02 06:39:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:51,112 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 897 transitions. [2023-04-02 06:39:51,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 897 transitions. [2023-04-02 06:39:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:39:51,113 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:51,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:51,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:39:51,114 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:51,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash -665162271, now seen corresponding path program 1 times [2023-04-02 06:39:51,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:51,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956278426] [2023-04-02 06:39:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:51,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:52,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:52,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956278426] [2023-04-02 06:39:52,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956278426] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:52,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:52,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:52,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448004398] [2023-04-02 06:39:52,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:52,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:52,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:52,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:52,038 INFO L87 Difference]: Start difference. First operand 681 states and 897 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:55,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:55,201 INFO L93 Difference]: Finished difference Result 1255 states and 1684 transitions. [2023-04-02 06:39:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:55,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2023-04-02 06:39:55,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:55,204 INFO L225 Difference]: With dead ends: 1255 [2023-04-02 06:39:55,204 INFO L226 Difference]: Without dead ends: 665 [2023-04-02 06:39:55,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:55,205 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 2511 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:55,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 489 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:39:55,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-04-02 06:39:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2023-04-02 06:39:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 640 states have (on average 1.3671875) internal successors, (875), 661 states have internal predecessors, (875), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:55,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 878 transitions. [2023-04-02 06:39:55,233 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 878 transitions. Word has length 94 [2023-04-02 06:39:55,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:55,234 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 878 transitions. [2023-04-02 06:39:55,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 878 transitions. [2023-04-02 06:39:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 06:39:55,235 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:55,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:39:55,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:55,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash 971843450, now seen corresponding path program 1 times [2023-04-02 06:39:55,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:55,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545577027] [2023-04-02 06:39:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:55,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:56,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:56,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545577027] [2023-04-02 06:39:56,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545577027] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:56,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:56,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:56,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127104157] [2023-04-02 06:39:56,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:56,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:56,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:56,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:56,159 INFO L87 Difference]: Start difference. First operand 665 states and 878 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:59,169 INFO L93 Difference]: Finished difference Result 1239 states and 1664 transitions. [2023-04-02 06:39:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:59,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2023-04-02 06:39:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:59,171 INFO L225 Difference]: With dead ends: 1239 [2023-04-02 06:39:59,171 INFO L226 Difference]: Without dead ends: 645 [2023-04-02 06:39:59,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:59,172 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 2503 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:59,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 492 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 06:39:59,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-04-02 06:39:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2023-04-02 06:39:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3758064516129032) internal successors, (853), 641 states have internal predecessors, (853), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 856 transitions. [2023-04-02 06:39:59,200 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 856 transitions. Word has length 95 [2023-04-02 06:39:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:59,201 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 856 transitions. [2023-04-02 06:39:59,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 856 transitions. [2023-04-02 06:39:59,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:39:59,202 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:59,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:59,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:39:59,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:59,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash -74601095, now seen corresponding path program 1 times [2023-04-02 06:39:59,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:59,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711279927] [2023-04-02 06:39:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:59,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:00,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:00,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711279927] [2023-04-02 06:40:00,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711279927] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:00,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:00,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:40:00,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265116281] [2023-04-02 06:40:00,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:00,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:40:00,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:40:00,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:40:00,389 INFO L87 Difference]: Start difference. First operand 645 states and 856 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:03,960 INFO L93 Difference]: Finished difference Result 1213 states and 1565 transitions. [2023-04-02 06:40:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:40:03,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:03,963 INFO L225 Difference]: With dead ends: 1213 [2023-04-02 06:40:03,963 INFO L226 Difference]: Without dead ends: 867 [2023-04-02 06:40:03,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:40:03,964 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 4935 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:03,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 1048 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 06:40:03,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-04-02 06:40:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 645. [2023-04-02 06:40:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3741935483870968) internal successors, (852), 641 states have internal predecessors, (852), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 855 transitions. [2023-04-02 06:40:04,010 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 855 transitions. Word has length 96 [2023-04-02 06:40:04,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:04,010 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 855 transitions. [2023-04-02 06:40:04,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 855 transitions. [2023-04-02 06:40:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:04,012 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:04,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:04,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:40:04,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:04,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:04,012 INFO L85 PathProgramCache]: Analyzing trace with hash -381739919, now seen corresponding path program 1 times [2023-04-02 06:40:04,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:04,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175636572] [2023-04-02 06:40:04,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:04,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:05,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:05,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175636572] [2023-04-02 06:40:05,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175636572] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:05,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:05,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:40:05,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414567717] [2023-04-02 06:40:05,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:05,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:40:05,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:40:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:40:05,327 INFO L87 Difference]: Start difference. First operand 645 states and 855 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:09,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:09,786 INFO L93 Difference]: Finished difference Result 1273 states and 1712 transitions. [2023-04-02 06:40:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 06:40:09,786 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:09,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:09,790 INFO L225 Difference]: With dead ends: 1273 [2023-04-02 06:40:09,790 INFO L226 Difference]: Without dead ends: 1174 [2023-04-02 06:40:09,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=207, Invalid=605, Unknown=0, NotChecked=0, Total=812 [2023-04-02 06:40:09,791 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 3923 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 3963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:09,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3923 Valid, 3583 Invalid, 3963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:40:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-04-02 06:40:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 652. [2023-04-02 06:40:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 627 states have (on average 1.3748006379585327) internal successors, (862), 648 states have internal predecessors, (862), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 865 transitions. [2023-04-02 06:40:09,837 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 865 transitions. Word has length 96 [2023-04-02 06:40:09,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:09,838 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 865 transitions. [2023-04-02 06:40:09,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:09,838 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 865 transitions. [2023-04-02 06:40:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:09,839 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:09,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:09,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:40:09,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:09,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:09,839 INFO L85 PathProgramCache]: Analyzing trace with hash -892120232, now seen corresponding path program 1 times [2023-04-02 06:40:09,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:09,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734805449] [2023-04-02 06:40:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:09,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:11,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:11,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734805449] [2023-04-02 06:40:11,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734805449] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:11,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:11,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:11,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084796921] [2023-04-02 06:40:11,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:11,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:11,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:11,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:11,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:11,014 INFO L87 Difference]: Start difference. First operand 652 states and 865 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:15,916 INFO L93 Difference]: Finished difference Result 1337 states and 1806 transitions. [2023-04-02 06:40:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:15,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:15,920 INFO L225 Difference]: With dead ends: 1337 [2023-04-02 06:40:15,920 INFO L226 Difference]: Without dead ends: 1144 [2023-04-02 06:40:15,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:15,921 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 4107 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 3694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:15,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 3011 Invalid, 3694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:40:15,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2023-04-02 06:40:15,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 645. [2023-04-02 06:40:15,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3725806451612903) internal successors, (851), 641 states have internal predecessors, (851), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 854 transitions. [2023-04-02 06:40:15,971 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 854 transitions. Word has length 96 [2023-04-02 06:40:15,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:15,971 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 854 transitions. [2023-04-02 06:40:15,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:15,971 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 854 transitions. [2023-04-02 06:40:15,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:15,972 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:15,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:15,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:40:15,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr21ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:15,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:15,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1284775265, now seen corresponding path program 1 times [2023-04-02 06:40:15,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032811192] [2023-04-02 06:40:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:15,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:17,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:17,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032811192] [2023-04-02 06:40:17,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032811192] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:17,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:17,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:17,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166821074] [2023-04-02 06:40:17,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:17,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:17,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:17,022 INFO L87 Difference]: Start difference. First operand 645 states and 854 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:20,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:20,961 INFO L93 Difference]: Finished difference Result 1231 states and 1655 transitions. [2023-04-02 06:40:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:20,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:20,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:20,964 INFO L225 Difference]: With dead ends: 1231 [2023-04-02 06:40:20,964 INFO L226 Difference]: Without dead ends: 1132 [2023-04-02 06:40:20,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:20,965 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 3856 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:20,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3856 Valid, 2262 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 06:40:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-04-02 06:40:21,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2023-04-02 06:40:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3709677419354838) internal successors, (850), 641 states have internal predecessors, (850), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 853 transitions. [2023-04-02 06:40:21,019 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 853 transitions. Word has length 96 [2023-04-02 06:40:21,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:21,020 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 853 transitions. [2023-04-02 06:40:21,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 853 transitions. [2023-04-02 06:40:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:40:21,021 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:21,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:21,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:40:21,021 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:21,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1400863290, now seen corresponding path program 1 times [2023-04-02 06:40:21,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560521823] [2023-04-02 06:40:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:22,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:22,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560521823] [2023-04-02 06:40:22,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560521823] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:22,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:22,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:22,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862617656] [2023-04-02 06:40:22,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:22,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:22,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:22,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:22,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:22,100 INFO L87 Difference]: Start difference. First operand 645 states and 853 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:26,589 INFO L93 Difference]: Finished difference Result 1278 states and 1720 transitions. [2023-04-02 06:40:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:26,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:40:26,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:26,593 INFO L225 Difference]: With dead ends: 1278 [2023-04-02 06:40:26,593 INFO L226 Difference]: Without dead ends: 1140 [2023-04-02 06:40:26,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:26,594 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 4687 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 3181 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:26,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4687 Valid, 2630 Invalid, 3199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3181 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:40:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-04-02 06:40:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 645. [2023-04-02 06:40:26,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3693548387096774) internal successors, (849), 641 states have internal predecessors, (849), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 852 transitions. [2023-04-02 06:40:26,651 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 852 transitions. Word has length 98 [2023-04-02 06:40:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:26,651 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 852 transitions. [2023-04-02 06:40:26,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:26,651 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 852 transitions. [2023-04-02 06:40:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:40:26,652 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:26,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:26,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:40:26,653 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:26,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1497399620, now seen corresponding path program 1 times [2023-04-02 06:40:26,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:26,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544165506] [2023-04-02 06:40:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:26,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:27,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:27,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544165506] [2023-04-02 06:40:27,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544165506] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:27,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:27,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362832262] [2023-04-02 06:40:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:27,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:27,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:27,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:27,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:27,708 INFO L87 Difference]: Start difference. First operand 645 states and 852 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:31,809 INFO L93 Difference]: Finished difference Result 1231 states and 1652 transitions. [2023-04-02 06:40:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:40:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:31,812 INFO L225 Difference]: With dead ends: 1231 [2023-04-02 06:40:31,812 INFO L226 Difference]: Without dead ends: 1132 [2023-04-02 06:40:31,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:31,813 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3592 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3592 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:31,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3592 Valid, 2458 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:40:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-04-02 06:40:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2023-04-02 06:40:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.367741935483871) internal successors, (848), 641 states have internal predecessors, (848), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 851 transitions. [2023-04-02 06:40:31,872 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 851 transitions. Word has length 98 [2023-04-02 06:40:31,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:31,872 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 851 transitions. [2023-04-02 06:40:31,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:31,872 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 851 transitions. [2023-04-02 06:40:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:40:31,873 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:31,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:31,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:40:31,874 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:31,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1102220372, now seen corresponding path program 1 times [2023-04-02 06:40:31,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:31,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177379719] [2023-04-02 06:40:31,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:31,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:33,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:33,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177379719] [2023-04-02 06:40:33,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177379719] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:33,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:33,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:40:33,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771758805] [2023-04-02 06:40:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:33,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:40:33,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:33,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:40:33,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:40:33,106 INFO L87 Difference]: Start difference. First operand 645 states and 851 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:40,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:40,249 INFO L93 Difference]: Finished difference Result 1558 states and 2107 transitions. [2023-04-02 06:40:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 06:40:40,249 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:40:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:40,252 INFO L225 Difference]: With dead ends: 1558 [2023-04-02 06:40:40,253 INFO L226 Difference]: Without dead ends: 1336 [2023-04-02 06:40:40,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2023-04-02 06:40:40,254 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 3650 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 4808 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3650 SdHoareTripleChecker+Valid, 4046 SdHoareTripleChecker+Invalid, 4842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:40,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3650 Valid, 4046 Invalid, 4842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 4808 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 06:40:40,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2023-04-02 06:40:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 645. [2023-04-02 06:40:40,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3661290322580646) internal successors, (847), 641 states have internal predecessors, (847), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 850 transitions. [2023-04-02 06:40:40,326 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 850 transitions. Word has length 98 [2023-04-02 06:40:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:40,326 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 850 transitions. [2023-04-02 06:40:40,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:40,327 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 850 transitions. [2023-04-02 06:40:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:40:40,328 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:40,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:40,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:40:40,328 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:40,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:40,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1378259577, now seen corresponding path program 1 times [2023-04-02 06:40:40,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:40,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012693706] [2023-04-02 06:40:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:40,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:41,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:41,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012693706] [2023-04-02 06:40:41,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012693706] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:41,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982174720] [2023-04-02 06:40:41,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:41,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:41,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:41,414 INFO L87 Difference]: Start difference. First operand 645 states and 850 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:45,588 INFO L93 Difference]: Finished difference Result 1231 states and 1651 transitions. [2023-04-02 06:40:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:45,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:40:45,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:45,591 INFO L225 Difference]: With dead ends: 1231 [2023-04-02 06:40:45,591 INFO L226 Difference]: Without dead ends: 1132 [2023-04-02 06:40:45,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:45,592 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4736 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 2986 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4736 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:45,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4736 Valid, 2453 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2986 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:40:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-04-02 06:40:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2023-04-02 06:40:45,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.364516129032258) internal successors, (846), 641 states have internal predecessors, (846), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 849 transitions. [2023-04-02 06:40:45,658 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 849 transitions. Word has length 98 [2023-04-02 06:40:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:45,659 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 849 transitions. [2023-04-02 06:40:45,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 849 transitions. [2023-04-02 06:40:45,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:40:45,660 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:45,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:45,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:40:45,660 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:45,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 867879264, now seen corresponding path program 1 times [2023-04-02 06:40:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:45,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87854052] [2023-04-02 06:40:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:45,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:46,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:46,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87854052] [2023-04-02 06:40:46,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87854052] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:46,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:46,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:40:46,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758139276] [2023-04-02 06:40:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:46,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:40:46,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:46,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:40:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:40:46,958 INFO L87 Difference]: Start difference. First operand 645 states and 849 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:54,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:54,933 INFO L93 Difference]: Finished difference Result 1954 states and 2690 transitions. [2023-04-02 06:40:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:40:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:40:54,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:54,938 INFO L225 Difference]: With dead ends: 1954 [2023-04-02 06:40:54,938 INFO L226 Difference]: Without dead ends: 1816 [2023-04-02 06:40:54,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:40:54,939 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 6349 mSDsluCounter, 3894 mSDsCounter, 0 mSdLazyCounter, 5501 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6349 SdHoareTripleChecker+Valid, 4814 SdHoareTripleChecker+Invalid, 5724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 5501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:54,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6349 Valid, 4814 Invalid, 5724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 5501 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 06:40:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2023-04-02 06:40:55,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 649. [2023-04-02 06:40:55,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3621794871794872) internal successors, (850), 645 states have internal predecessors, (850), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 853 transitions. [2023-04-02 06:40:55,028 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 853 transitions. Word has length 98 [2023-04-02 06:40:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:55,028 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 853 transitions. [2023-04-02 06:40:55,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 853 transitions. [2023-04-02 06:40:55,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:40:55,029 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:55,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:55,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:40:55,031 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:55,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1957972561, now seen corresponding path program 1 times [2023-04-02 06:40:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781264292] [2023-04-02 06:40:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:56,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:56,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:56,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781264292] [2023-04-02 06:40:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781264292] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:56,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:56,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:56,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874032563] [2023-04-02 06:40:56,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:56,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:56,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:56,084 INFO L87 Difference]: Start difference. First operand 649 states and 853 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:00,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:00,264 INFO L93 Difference]: Finished difference Result 1230 states and 1649 transitions. [2023-04-02 06:41:00,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:00,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:00,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:00,267 INFO L225 Difference]: With dead ends: 1230 [2023-04-02 06:41:00,267 INFO L226 Difference]: Without dead ends: 1136 [2023-04-02 06:41:00,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:00,268 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3607 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 2970 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3607 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:00,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3607 Valid, 2433 Invalid, 2988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2970 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:41:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-04-02 06:41:00,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 649. [2023-04-02 06:41:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3605769230769231) internal successors, (849), 645 states have internal predecessors, (849), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 852 transitions. [2023-04-02 06:41:00,362 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 852 transitions. Word has length 98 [2023-04-02 06:41:00,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:00,362 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 852 transitions. [2023-04-02 06:41:00,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:00,363 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 852 transitions. [2023-04-02 06:41:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:00,364 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:00,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:00,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:41:00,364 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:00,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:00,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1402444646, now seen corresponding path program 1 times [2023-04-02 06:41:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:00,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989341412] [2023-04-02 06:41:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:00,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:01,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:01,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:01,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989341412] [2023-04-02 06:41:01,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989341412] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:01,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:01,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246959928] [2023-04-02 06:41:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:01,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:01,419 INFO L87 Difference]: Start difference. First operand 649 states and 852 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:06,177 INFO L93 Difference]: Finished difference Result 1264 states and 1701 transitions. [2023-04-02 06:41:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:06,180 INFO L225 Difference]: With dead ends: 1264 [2023-04-02 06:41:06,180 INFO L226 Difference]: Without dead ends: 1140 [2023-04-02 06:41:06,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:41:06,181 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 4369 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 3405 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4369 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:06,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4369 Valid, 2874 Invalid, 3423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3405 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:41:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-04-02 06:41:06,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 649. [2023-04-02 06:41:06,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.358974358974359) internal successors, (848), 645 states have internal predecessors, (848), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 851 transitions. [2023-04-02 06:41:06,273 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 851 transitions. Word has length 98 [2023-04-02 06:41:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:06,273 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 851 transitions. [2023-04-02 06:41:06,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 851 transitions. [2023-04-02 06:41:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:41:06,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:06,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:06,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:41:06,275 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:06,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:06,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1531485420, now seen corresponding path program 1 times [2023-04-02 06:41:06,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:06,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936051222] [2023-04-02 06:41:06,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:06,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:07,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:07,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936051222] [2023-04-02 06:41:07,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936051222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:07,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:07,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:07,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060275423] [2023-04-02 06:41:07,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:07,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:07,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:07,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:07,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:07,312 INFO L87 Difference]: Start difference. First operand 649 states and 851 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:12,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:12,758 INFO L93 Difference]: Finished difference Result 1278 states and 1715 transitions. [2023-04-02 06:41:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:12,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2023-04-02 06:41:12,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:12,762 INFO L225 Difference]: With dead ends: 1278 [2023-04-02 06:41:12,762 INFO L226 Difference]: Without dead ends: 1140 [2023-04-02 06:41:12,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:12,762 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 3355 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 4111 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 4128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:12,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3355 Valid, 3324 Invalid, 4128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4111 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 06:41:12,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-04-02 06:41:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 645. [2023-04-02 06:41:12,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3596774193548387) internal successors, (843), 641 states have internal predecessors, (843), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 846 transitions. [2023-04-02 06:41:12,854 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 846 transitions. Word has length 99 [2023-04-02 06:41:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:12,854 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 846 transitions. [2023-04-02 06:41:12,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 846 transitions. [2023-04-02 06:41:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:12,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:12,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:12,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:41:12,856 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:12,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1342018959, now seen corresponding path program 1 times [2023-04-02 06:41:12,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:12,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445790945] [2023-04-02 06:41:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:12,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:13,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445790945] [2023-04-02 06:41:13,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445790945] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:13,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:13,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386895849] [2023-04-02 06:41:13,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:13,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:13,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:13,934 INFO L87 Difference]: Start difference. First operand 645 states and 846 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:18,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:18,361 INFO L93 Difference]: Finished difference Result 1202 states and 1601 transitions. [2023-04-02 06:41:18,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:18,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:18,364 INFO L225 Difference]: With dead ends: 1202 [2023-04-02 06:41:18,364 INFO L226 Difference]: Without dead ends: 1116 [2023-04-02 06:41:18,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:41:18,365 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 4546 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:18,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 2509 Invalid, 3143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:41:18,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-04-02 06:41:18,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 645. [2023-04-02 06:41:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3580645161290323) internal successors, (842), 641 states have internal predecessors, (842), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:18,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 845 transitions. [2023-04-02 06:41:18,469 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 845 transitions. Word has length 100 [2023-04-02 06:41:18,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:18,469 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 845 transitions. [2023-04-02 06:41:18,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:18,470 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 845 transitions. [2023-04-02 06:41:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:18,471 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:18,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:18,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:41:18,471 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:18,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1212568214, now seen corresponding path program 1 times [2023-04-02 06:41:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:18,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515232937] [2023-04-02 06:41:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:18,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:19,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:19,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515232937] [2023-04-02 06:41:19,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515232937] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:19,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:19,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:19,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455146732] [2023-04-02 06:41:19,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:19,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:19,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:19,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:19,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:19,493 INFO L87 Difference]: Start difference. First operand 645 states and 845 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:24,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:24,166 INFO L93 Difference]: Finished difference Result 1240 states and 1654 transitions. [2023-04-02 06:41:24,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:24,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:24,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:24,169 INFO L225 Difference]: With dead ends: 1240 [2023-04-02 06:41:24,169 INFO L226 Difference]: Without dead ends: 1132 [2023-04-02 06:41:24,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:24,170 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 2240 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 3399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:24,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2240 Valid, 2784 Invalid, 3399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3384 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:41:24,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-04-02 06:41:24,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2023-04-02 06:41:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3564516129032258) internal successors, (841), 641 states have internal predecessors, (841), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 844 transitions. [2023-04-02 06:41:24,272 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 844 transitions. Word has length 100 [2023-04-02 06:41:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:24,272 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 844 transitions. [2023-04-02 06:41:24,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 844 transitions. [2023-04-02 06:41:24,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:24,273 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:24,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:24,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:41:24,273 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:24,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:24,274 INFO L85 PathProgramCache]: Analyzing trace with hash 614036515, now seen corresponding path program 1 times [2023-04-02 06:41:24,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:24,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717834962] [2023-04-02 06:41:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:25,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:25,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:25,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717834962] [2023-04-02 06:41:25,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717834962] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:25,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:25,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948989615] [2023-04-02 06:41:25,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:25,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:25,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:25,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:25,287 INFO L87 Difference]: Start difference. First operand 645 states and 844 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:29,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:29,701 INFO L93 Difference]: Finished difference Result 1246 states and 1658 transitions. [2023-04-02 06:41:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:29,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:29,705 INFO L225 Difference]: With dead ends: 1246 [2023-04-02 06:41:29,705 INFO L226 Difference]: Without dead ends: 1132 [2023-04-02 06:41:29,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:29,706 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 2531 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 3143 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2531 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:29,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 2632 Invalid, 3159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3143 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:41:29,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-04-02 06:41:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2023-04-02 06:41:29,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3548387096774193) internal successors, (840), 641 states have internal predecessors, (840), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:29,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 843 transitions. [2023-04-02 06:41:29,809 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 843 transitions. Word has length 100 [2023-04-02 06:41:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:29,809 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 843 transitions. [2023-04-02 06:41:29,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 843 transitions. [2023-04-02 06:41:29,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:29,811 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:29,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:29,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:41:29,811 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:29,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:29,811 INFO L85 PathProgramCache]: Analyzing trace with hash 463404509, now seen corresponding path program 1 times [2023-04-02 06:41:29,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:29,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94493941] [2023-04-02 06:41:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:29,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:31,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:31,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94493941] [2023-04-02 06:41:31,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94493941] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:31,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:31,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:41:31,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060333158] [2023-04-02 06:41:31,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:31,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:41:31,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:31,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:41:31,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:41:31,017 INFO L87 Difference]: Start difference. First operand 645 states and 843 transitions. Second operand has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:39,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:39,035 INFO L93 Difference]: Finished difference Result 1984 states and 2704 transitions. [2023-04-02 06:41:39,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:41:39,035 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:39,040 INFO L225 Difference]: With dead ends: 1984 [2023-04-02 06:41:39,040 INFO L226 Difference]: Without dead ends: 1831 [2023-04-02 06:41:39,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:41:39,041 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 6420 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 4750 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6420 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 4981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 4750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:39,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6420 Valid, 3949 Invalid, 4981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 4750 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 06:41:39,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2023-04-02 06:41:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 649. [2023-04-02 06:41:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3525641025641026) internal successors, (844), 645 states have internal predecessors, (844), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 847 transitions. [2023-04-02 06:41:39,156 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 847 transitions. Word has length 100 [2023-04-02 06:41:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:39,156 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 847 transitions. [2023-04-02 06:41:39,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 847 transitions. [2023-04-02 06:41:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:39,157 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:39,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:39,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:41:39,157 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:39,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:39,158 INFO L85 PathProgramCache]: Analyzing trace with hash -423351913, now seen corresponding path program 1 times [2023-04-02 06:41:39,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:39,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312040160] [2023-04-02 06:41:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:39,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:40,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:40,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:40,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312040160] [2023-04-02 06:41:40,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312040160] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:40,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:40,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:40,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077229193] [2023-04-02 06:41:40,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:40,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:40,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:40,207 INFO L87 Difference]: Start difference. First operand 649 states and 847 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:44,948 INFO L93 Difference]: Finished difference Result 1202 states and 1598 transitions. [2023-04-02 06:41:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:44,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:44,951 INFO L225 Difference]: With dead ends: 1202 [2023-04-02 06:41:44,951 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:41:44,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:41:44,952 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 4259 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3328 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:44,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 2741 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3328 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:41:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:41:45,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:41:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3509615384615385) internal successors, (843), 645 states have internal predecessors, (843), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 846 transitions. [2023-04-02 06:41:45,067 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 846 transitions. Word has length 100 [2023-04-02 06:41:45,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:45,067 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 846 transitions. [2023-04-02 06:41:45,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 846 transitions. [2023-04-02 06:41:45,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:45,068 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:45,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:45,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:41:45,068 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:45,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:45,069 INFO L85 PathProgramCache]: Analyzing trace with hash -983012777, now seen corresponding path program 1 times [2023-04-02 06:41:45,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:45,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409605472] [2023-04-02 06:41:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:45,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:46,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:46,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409605472] [2023-04-02 06:41:46,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409605472] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:46,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:46,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:46,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645178941] [2023-04-02 06:41:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:46,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:46,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:46,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:46,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:46,107 INFO L87 Difference]: Start difference. First operand 649 states and 846 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:51,014 INFO L93 Difference]: Finished difference Result 1206 states and 1600 transitions. [2023-04-02 06:41:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:51,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:51,017 INFO L225 Difference]: With dead ends: 1206 [2023-04-02 06:41:51,017 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:41:51,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:51,018 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 2537 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 3566 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:51,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 2886 Invalid, 3581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3566 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:41:51,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:41:51,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:41:51,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3493589743589745) internal successors, (842), 645 states have internal predecessors, (842), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:51,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 845 transitions. [2023-04-02 06:41:51,134 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 845 transitions. Word has length 100 [2023-04-02 06:41:51,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:51,134 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 845 transitions. [2023-04-02 06:41:51,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:51,134 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 845 transitions. [2023-04-02 06:41:51,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:51,135 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:51,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:51,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:41:51,135 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:51,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:51,136 INFO L85 PathProgramCache]: Analyzing trace with hash 525984905, now seen corresponding path program 1 times [2023-04-02 06:41:51,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:51,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215966637] [2023-04-02 06:41:51,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:51,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:52,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215966637] [2023-04-02 06:41:52,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215966637] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:52,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:52,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:52,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639870021] [2023-04-02 06:41:52,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:52,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:52,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:52,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:52,153 INFO L87 Difference]: Start difference. First operand 649 states and 845 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:56,980 INFO L93 Difference]: Finished difference Result 1206 states and 1598 transitions. [2023-04-02 06:41:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:56,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:41:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:56,983 INFO L225 Difference]: With dead ends: 1206 [2023-04-02 06:41:56,983 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:41:56,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:56,984 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 3045 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 3766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:56,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 3360 Invalid, 3766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3751 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-02 06:41:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:41:57,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:41:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3477564102564104) internal successors, (841), 645 states have internal predecessors, (841), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 844 transitions. [2023-04-02 06:41:57,102 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 844 transitions. Word has length 100 [2023-04-02 06:41:57,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:57,102 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 844 transitions. [2023-04-02 06:41:57,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 844 transitions. [2023-04-02 06:41:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:57,103 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:57,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:57,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:41:57,104 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:57,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:57,104 INFO L85 PathProgramCache]: Analyzing trace with hash -824034060, now seen corresponding path program 1 times [2023-04-02 06:41:57,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:57,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353096286] [2023-04-02 06:41:57,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:57,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:58,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:58,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:58,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353096286] [2023-04-02 06:41:58,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353096286] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:58,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:58,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856434156] [2023-04-02 06:41:58,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:58,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:58,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:58,088 INFO L87 Difference]: Start difference. First operand 649 states and 844 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:03,295 INFO L93 Difference]: Finished difference Result 1244 states and 1649 transitions. [2023-04-02 06:42:03,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:03,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:03,298 INFO L225 Difference]: With dead ends: 1244 [2023-04-02 06:42:03,298 INFO L226 Difference]: Without dead ends: 1136 [2023-04-02 06:42:03,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:03,299 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 2918 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:03,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2918 Valid, 3094 Invalid, 3874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-04-02 06:42:03,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 649. [2023-04-02 06:42:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3461538461538463) internal successors, (840), 645 states have internal predecessors, (840), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:03,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 843 transitions. [2023-04-02 06:42:03,428 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 843 transitions. Word has length 100 [2023-04-02 06:42:03,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:03,428 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 843 transitions. [2023-04-02 06:42:03,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 843 transitions. [2023-04-02 06:42:03,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:03,429 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:03,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:03,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:42:03,430 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:03,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -792680001, now seen corresponding path program 1 times [2023-04-02 06:42:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:03,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802968661] [2023-04-02 06:42:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:03,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:04,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:04,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802968661] [2023-04-02 06:42:04,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802968661] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:04,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:04,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:04,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428294616] [2023-04-02 06:42:04,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:04,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:04,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:04,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:04,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:04,451 INFO L87 Difference]: Start difference. First operand 649 states and 843 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:09,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:09,223 INFO L93 Difference]: Finished difference Result 1206 states and 1597 transitions. [2023-04-02 06:42:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:09,225 INFO L225 Difference]: With dead ends: 1206 [2023-04-02 06:42:09,225 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:09,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:09,226 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 3769 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 3396 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3769 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:09,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3769 Valid, 2840 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3396 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:42:09,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:09,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3445512820512822) internal successors, (839), 645 states have internal predecessors, (839), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:09,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 842 transitions. [2023-04-02 06:42:09,350 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 842 transitions. Word has length 100 [2023-04-02 06:42:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:09,350 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 842 transitions. [2023-04-02 06:42:09,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:09,350 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 842 transitions. [2023-04-02 06:42:09,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:09,351 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:09,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:09,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:42:09,351 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:09,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash -922130746, now seen corresponding path program 1 times [2023-04-02 06:42:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:09,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095554796] [2023-04-02 06:42:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:10,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:10,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095554796] [2023-04-02 06:42:10,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095554796] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:10,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:10,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:10,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138953698] [2023-04-02 06:42:10,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:10,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:10,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:10,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:10,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:10,337 INFO L87 Difference]: Start difference. First operand 649 states and 842 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:15,284 INFO L93 Difference]: Finished difference Result 1244 states and 1647 transitions. [2023-04-02 06:42:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:15,284 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:15,286 INFO L225 Difference]: With dead ends: 1244 [2023-04-02 06:42:15,286 INFO L226 Difference]: Without dead ends: 1136 [2023-04-02 06:42:15,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:15,286 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 4129 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 3556 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:15,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 2900 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3556 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:42:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-04-02 06:42:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 649. [2023-04-02 06:42:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3429487179487178) internal successors, (838), 645 states have internal predecessors, (838), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 841 transitions. [2023-04-02 06:42:15,412 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 841 transitions. Word has length 100 [2023-04-02 06:42:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:15,412 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 841 transitions. [2023-04-02 06:42:15,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 841 transitions. [2023-04-02 06:42:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:15,413 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:15,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:15,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:42:15,413 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:15,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:15,414 INFO L85 PathProgramCache]: Analyzing trace with hash -362774070, now seen corresponding path program 1 times [2023-04-02 06:42:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:15,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578970779] [2023-04-02 06:42:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:15,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:16,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:16,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578970779] [2023-04-02 06:42:16,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578970779] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:16,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:16,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:16,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543466946] [2023-04-02 06:42:16,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:16,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:16,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:16,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:16,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:16,430 INFO L87 Difference]: Start difference. First operand 649 states and 841 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:21,640 INFO L93 Difference]: Finished difference Result 1202 states and 1591 transitions. [2023-04-02 06:42:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:21,641 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:21,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:21,642 INFO L225 Difference]: With dead ends: 1202 [2023-04-02 06:42:21,642 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:21,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:42:21,643 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 3705 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 3786 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3705 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:21,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3705 Valid, 3126 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3786 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:21,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:21,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3413461538461537) internal successors, (837), 645 states have internal predecessors, (837), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 840 transitions. [2023-04-02 06:42:21,772 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 840 transitions. Word has length 100 [2023-04-02 06:42:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:21,773 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 840 transitions. [2023-04-02 06:42:21,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:21,773 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 840 transitions. [2023-04-02 06:42:21,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:21,774 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:21,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:21,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:42:21,774 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:21,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:21,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1833683915, now seen corresponding path program 1 times [2023-04-02 06:42:21,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:21,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39218691] [2023-04-02 06:42:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:21,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:22,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:22,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39218691] [2023-04-02 06:42:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39218691] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:22,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:22,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:22,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718901603] [2023-04-02 06:42:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:22,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:22,792 INFO L87 Difference]: Start difference. First operand 649 states and 840 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:27,975 INFO L93 Difference]: Finished difference Result 1206 states and 1594 transitions. [2023-04-02 06:42:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:27,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:27,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:27,977 INFO L225 Difference]: With dead ends: 1206 [2023-04-02 06:42:27,977 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:27,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:27,978 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 2941 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 3741 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 3759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:27,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 3082 Invalid, 3759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3741 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3397435897435896) internal successors, (836), 645 states have internal predecessors, (836), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 839 transitions. [2023-04-02 06:42:28,113 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 839 transitions. Word has length 100 [2023-04-02 06:42:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:28,113 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 839 transitions. [2023-04-02 06:42:28,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 839 transitions. [2023-04-02 06:42:28,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:28,114 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:28,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:28,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:42:28,114 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:28,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:28,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1330137809, now seen corresponding path program 1 times [2023-04-02 06:42:28,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:28,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139036999] [2023-04-02 06:42:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:28,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:29,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139036999] [2023-04-02 06:42:29,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139036999] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:29,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:29,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:29,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747150851] [2023-04-02 06:42:29,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:29,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:29,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:29,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:29,145 INFO L87 Difference]: Start difference. First operand 649 states and 839 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:34,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:34,398 INFO L93 Difference]: Finished difference Result 1201 states and 1587 transitions. [2023-04-02 06:42:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:34,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:34,402 INFO L225 Difference]: With dead ends: 1201 [2023-04-02 06:42:34,402 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:34,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:42:34,403 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 3688 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 3771 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:34,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3688 Valid, 3143 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3771 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:34,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3381410256410255) internal successors, (835), 645 states have internal predecessors, (835), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 838 transitions. [2023-04-02 06:42:34,537 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 838 transitions. Word has length 100 [2023-04-02 06:42:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:34,537 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 838 transitions. [2023-04-02 06:42:34,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 838 transitions. [2023-04-02 06:42:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:34,538 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:34,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:34,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:42:34,539 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:34,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 996588777, now seen corresponding path program 1 times [2023-04-02 06:42:34,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:34,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494124976] [2023-04-02 06:42:34,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:34,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494124976] [2023-04-02 06:42:35,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494124976] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:35,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:35,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:35,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423694388] [2023-04-02 06:42:35,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:35,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:35,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:35,539 INFO L87 Difference]: Start difference. First operand 649 states and 838 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:40,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:40,724 INFO L93 Difference]: Finished difference Result 1202 states and 1587 transitions. [2023-04-02 06:42:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:40,725 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:40,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:40,726 INFO L225 Difference]: With dead ends: 1202 [2023-04-02 06:42:40,726 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:40,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:40,727 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 3837 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 3728 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 3746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:40,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 3080 Invalid, 3746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3728 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:40,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3365384615384615) internal successors, (834), 645 states have internal predecessors, (834), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 837 transitions. [2023-04-02 06:42:40,873 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 837 transitions. Word has length 100 [2023-04-02 06:42:40,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:40,874 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 837 transitions. [2023-04-02 06:42:40,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 837 transitions. [2023-04-02 06:42:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:40,875 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:40,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:40,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 06:42:40,875 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:40,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1276110451, now seen corresponding path program 1 times [2023-04-02 06:42:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266061956] [2023-04-02 06:42:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:40,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:41,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:41,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266061956] [2023-04-02 06:42:41,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266061956] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:41,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:41,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:41,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816600745] [2023-04-02 06:42:41,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:41,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:41,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:41,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:41,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:41,915 INFO L87 Difference]: Start difference. First operand 649 states and 837 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:46,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:46,886 INFO L93 Difference]: Finished difference Result 1202 states and 1585 transitions. [2023-04-02 06:42:46,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:46,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:46,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:46,888 INFO L225 Difference]: With dead ends: 1202 [2023-04-02 06:42:46,888 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:46,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:46,888 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 2932 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:46,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2932 Valid, 3258 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3681 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:42:46,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:47,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3349358974358974) internal successors, (833), 645 states have internal predecessors, (833), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:47,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 836 transitions. [2023-04-02 06:42:47,025 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 836 transitions. Word has length 100 [2023-04-02 06:42:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:47,025 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 836 transitions. [2023-04-02 06:42:47,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 836 transitions. [2023-04-02 06:42:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:42:47,026 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:47,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:47,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-04-02 06:42:47,027 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr21ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:47,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1835121893, now seen corresponding path program 1 times [2023-04-02 06:42:47,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:47,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65631093] [2023-04-02 06:42:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:47,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:47,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65631093] [2023-04-02 06:42:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65631093] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:48,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:48,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:48,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814816897] [2023-04-02 06:42:48,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:48,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:48,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:48,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:48,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:48,029 INFO L87 Difference]: Start difference. First operand 649 states and 836 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:53,302 INFO L93 Difference]: Finished difference Result 1206 states and 1587 transitions. [2023-04-02 06:42:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:42:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:53,304 INFO L225 Difference]: With dead ends: 1206 [2023-04-02 06:42:53,304 INFO L226 Difference]: Without dead ends: 1120 [2023-04-02 06:42:53,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:53,304 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2825 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 4139 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:53,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 3715 Invalid, 4154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4139 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:53,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-04-02 06:42:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 649. [2023-04-02 06:42:53,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 624 states have (on average 1.3333333333333333) internal successors, (832), 645 states have internal predecessors, (832), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:53,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 835 transitions. [2023-04-02 06:42:53,449 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 835 transitions. Word has length 100 [2023-04-02 06:42:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:53,449 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 835 transitions. [2023-04-02 06:42:53,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 835 transitions. [2023-04-02 06:42:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 06:42:53,450 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:53,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:53,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-04-02 06:42:53,451 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:53,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1445282856, now seen corresponding path program 1 times [2023-04-02 06:42:53,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:53,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087113973] [2023-04-02 06:42:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:54,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:54,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087113973] [2023-04-02 06:42:54,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087113973] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:54,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:54,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:54,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138360795] [2023-04-02 06:42:54,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:54,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:54,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:54,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:54,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:54,434 INFO L87 Difference]: Start difference. First operand 649 states and 835 transitions. Second operand has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:59,706 INFO L93 Difference]: Finished difference Result 1293 states and 1703 transitions. [2023-04-02 06:42:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:59,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2023-04-02 06:42:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:59,708 INFO L225 Difference]: With dead ends: 1293 [2023-04-02 06:42:59,708 INFO L226 Difference]: Without dead ends: 1140 [2023-04-02 06:42:59,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:59,708 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 2187 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:59,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2187 Valid, 3056 Invalid, 3667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:42:59,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-04-02 06:42:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 645. [2023-04-02 06:42:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3338709677419356) internal successors, (827), 641 states have internal predecessors, (827), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 830 transitions. [2023-04-02 06:42:59,857 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 830 transitions. Word has length 101 [2023-04-02 06:42:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:59,857 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 830 transitions. [2023-04-02 06:42:59,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 830 transitions. [2023-04-02 06:42:59,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:42:59,858 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:59,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:59,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-04-02 06:42:59,858 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:59,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:59,858 INFO L85 PathProgramCache]: Analyzing trace with hash -153595835, now seen corresponding path program 1 times [2023-04-02 06:42:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:59,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271985590] [2023-04-02 06:42:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:59,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:43:00,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:00,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271985590] [2023-04-02 06:43:00,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271985590] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:00,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:00,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:00,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354464089] [2023-04-02 06:43:00,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:00,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:00,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:00,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:00,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:00,886 INFO L87 Difference]: Start difference. First operand 645 states and 830 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:05,601 INFO L93 Difference]: Finished difference Result 1207 states and 1585 transitions. [2023-04-02 06:43:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:05,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:43:05,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:05,603 INFO L225 Difference]: With dead ends: 1207 [2023-04-02 06:43:05,603 INFO L226 Difference]: Without dead ends: 1116 [2023-04-02 06:43:05,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:43:05,604 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 3117 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 3470 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3117 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 3485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:05,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3117 Valid, 3153 Invalid, 3485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3470 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:43:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-04-02 06:43:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 645. [2023-04-02 06:43:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.332258064516129) internal successors, (826), 641 states have internal predecessors, (826), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 829 transitions. [2023-04-02 06:43:05,750 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 829 transitions. Word has length 102 [2023-04-02 06:43:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:05,751 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 829 transitions. [2023-04-02 06:43:05,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 829 transitions. [2023-04-02 06:43:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:43:05,752 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:05,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:43:05,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-04-02 06:43:05,752 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:05,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:05,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2082752347, now seen corresponding path program 1 times [2023-04-02 06:43:05,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:05,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472717886] [2023-04-02 06:43:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:05,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:43:06,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:06,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472717886] [2023-04-02 06:43:06,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472717886] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:06,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:06,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879413936] [2023-04-02 06:43:06,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:06,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:06,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:06,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:06,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:06,755 INFO L87 Difference]: Start difference. First operand 645 states and 829 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:11,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:11,362 INFO L93 Difference]: Finished difference Result 1163 states and 1518 transitions. [2023-04-02 06:43:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:11,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:43:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:11,363 INFO L225 Difference]: With dead ends: 1163 [2023-04-02 06:43:11,363 INFO L226 Difference]: Without dead ends: 1084 [2023-04-02 06:43:11,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:43:11,364 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 3088 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3289 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:11,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 2777 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3289 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:43:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2023-04-02 06:43:11,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 645. [2023-04-02 06:43:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3306451612903225) internal successors, (825), 641 states have internal predecessors, (825), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 828 transitions. [2023-04-02 06:43:11,514 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 828 transitions. Word has length 102 [2023-04-02 06:43:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:11,515 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 828 transitions. [2023-04-02 06:43:11,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 828 transitions. [2023-04-02 06:43:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:43:11,516 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:11,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:43:11,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-04-02 06:43:11,516 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:11,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash -816908503, now seen corresponding path program 1 times [2023-04-02 06:43:11,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:11,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183662051] [2023-04-02 06:43:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:11,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:43:12,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:12,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183662051] [2023-04-02 06:43:12,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183662051] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:12,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:12,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:12,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699780643] [2023-04-02 06:43:12,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:12,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:12,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:12,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:12,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:12,505 INFO L87 Difference]: Start difference. First operand 645 states and 828 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:17,629 INFO L93 Difference]: Finished difference Result 1207 states and 1583 transitions. [2023-04-02 06:43:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:43:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:17,631 INFO L225 Difference]: With dead ends: 1207 [2023-04-02 06:43:17,631 INFO L226 Difference]: Without dead ends: 1116 [2023-04-02 06:43:17,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:43:17,631 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 2101 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 3637 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2101 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:17,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2101 Valid, 3022 Invalid, 3653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3637 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:43:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-04-02 06:43:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 645. [2023-04-02 06:43:17,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3290322580645162) internal successors, (824), 641 states have internal predecessors, (824), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 827 transitions. [2023-04-02 06:43:17,787 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 827 transitions. Word has length 102 [2023-04-02 06:43:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:17,787 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 827 transitions. [2023-04-02 06:43:17,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:43:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 827 transitions. [2023-04-02 06:43:17,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:43:17,788 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:17,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:43:17,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-04-02 06:43:17,789 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:17,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:17,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1548902281, now seen corresponding path program 1 times [2023-04-02 06:43:17,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:17,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160887753] [2023-04-02 06:43:17,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:17,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:43:18,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:18,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160887753] [2023-04-02 06:43:18,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160887753] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:18,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:18,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244478912] [2023-04-02 06:43:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:18,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:18,814 INFO L87 Difference]: Start difference. First operand 645 states and 827 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)