/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.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:42:11,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:42:11,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:42:11,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 06:42:11,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:42:11,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:42:11,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:42:11,756 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 06:42:11,783 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:42:11,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:42:11,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:42:11,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:42:11,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:42:11,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:42:11,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:42:11,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:42:11,786 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:42:11,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:42:11,787 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:42:11,788 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:42:11,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:42:11,789 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:42:11,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:42:11,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:42:11,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:42:11,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:42:11,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:42:11,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:42:11,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:42:11,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:42:11,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:42:11,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:42:11,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:42:11,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:42:11,791 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:42:11,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:42:11,791 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:42:11,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:42:12,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:42:12,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:42:12,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:42:12,071 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:42:12,072 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:42:12,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:42:13,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:42:13,810 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:42:13,811 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:42:13,856 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2d85b5c/be29ed9a7cb445c69567caf4d1697b3f/FLAG8b10f1b34 [2023-04-02 06:42:13,871 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2d85b5c/be29ed9a7cb445c69567caf4d1697b3f [2023-04-02 06:42:13,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:42:13,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:42:13,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:42:13,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:42:13,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:42:13,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:42:13" (1/1) ... [2023-04-02 06:42:13,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60eec145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:13, skipping insertion in model container [2023-04-02 06:42:13,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:42:13" (1/1) ... [2023-04-02 06:42:13,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:42:14,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:42:14,863 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.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2023-04-02 06:42:14,973 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.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2023-04-02 06:42:15,015 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.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2023-04-02 06:42:15,046 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.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2023-04-02 06:42:15,060 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.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2023-04-02 06:42:15,073 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.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2023-04-02 06:42:15,148 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.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2023-04-02 06:42:15,182 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.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2023-04-02 06:42:15,199 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.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2023-04-02 06:42:15,209 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.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2023-04-02 06:42:15,222 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.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2023-04-02 06:42:15,257 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.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2023-04-02 06:42:15,274 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.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2023-04-02 06:42:15,285 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.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2023-04-02 06:42:15,293 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.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2023-04-02 06:42:15,303 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.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2023-04-02 06:42:15,313 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.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2023-04-02 06:42:15,325 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.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2023-04-02 06:42:15,340 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.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2023-04-02 06:42:15,349 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.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2023-04-02 06:42:15,358 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.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2023-04-02 06:42:15,367 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.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2023-04-02 06:42:15,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:42:15,437 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:42:15,603 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.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2023-04-02 06:42:15,662 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.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2023-04-02 06:42:15,692 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.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2023-04-02 06:42:15,708 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.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2023-04-02 06:42:15,717 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.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2023-04-02 06:42:15,725 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.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2023-04-02 06:42:15,814 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.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2023-04-02 06:42:15,841 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.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2023-04-02 06:42:15,855 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.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2023-04-02 06:42:15,863 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.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2023-04-02 06:42:15,871 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.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2023-04-02 06:42:15,905 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.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2023-04-02 06:42:15,920 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.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2023-04-02 06:42:15,928 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.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2023-04-02 06:42:15,939 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.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2023-04-02 06:42:15,956 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.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2023-04-02 06:42:15,964 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.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2023-04-02 06:42:15,972 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.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2023-04-02 06:42:15,980 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.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2023-04-02 06:42:15,988 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.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2023-04-02 06:42:15,996 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.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2023-04-02 06:42:16,004 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.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2023-04-02 06:42:16,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:42:16,055 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:42:16,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16 WrapperNode [2023-04-02 06:42:16,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:42:16,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:42:16,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:42:16,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:42:16,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:42:16,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:42:16,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:42:16,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:42:16,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (1/1) ... [2023-04-02 06:42:16,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:42:16,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:42:16,422 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 06:42:16,442 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 06:42:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:42:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:42:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:42:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:42:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:42:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:42:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:42:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:42:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:42:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:42:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:42:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 06:42:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:42:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:42:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:42:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:42:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:42:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:42:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:42:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:42:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 06:42:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 06:42:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:42:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:42:16,826 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:42:16,828 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:42:21,028 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:42:21,046 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:42:21,046 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:42:21,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:42:21 BoogieIcfgContainer [2023-04-02 06:42:21,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:42:21,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:42:21,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:42:21,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:42:21,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:42:13" (1/3) ... [2023-04-02 06:42:21,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dac8f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:42:21, skipping insertion in model container [2023-04-02 06:42:21,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:42:16" (2/3) ... [2023-04-02 06:42:21,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dac8f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:42:21, skipping insertion in model container [2023-04-02 06:42:21,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:42:21" (3/3) ... [2023-04-02 06:42:21,058 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:42:21,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:42:21,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-04-02 06:42:21,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:42:21,184 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;@28eb25d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:42:21,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-04-02 06:42:21,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 2353 states, 2326 states have (on average 1.8211521926053311) internal successors, (4236), 2348 states have internal predecessors, (4236), 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 06:42:21,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:42:21,236 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:21,236 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 06:42:21,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:21,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:21,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1264786515, now seen corresponding path program 1 times [2023-04-02 06:42:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:21,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497005536] [2023-04-02 06:42:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:21,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:23,176 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 06:42:23,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:23,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497005536] [2023-04-02 06:42:23,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497005536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:23,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:23,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:42:23,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075890560] [2023-04-02 06:42:23,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:23,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:42:23,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:23,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:42:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:42:23,218 INFO L87 Difference]: Start difference. First operand has 2353 states, 2326 states have (on average 1.8211521926053311) internal successors, (4236), 2348 states have internal predecessors, (4236), 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 06:42:36,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:36,012 INFO L93 Difference]: Finished difference Result 3196 states and 5658 transitions. [2023-04-02 06:42:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:42:36,014 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 06:42:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:36,035 INFO L225 Difference]: With dead ends: 3196 [2023-04-02 06:42:36,035 INFO L226 Difference]: Without dead ends: 2093 [2023-04-02 06:42:36,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:42:36,047 INFO L413 NwaCegarLoop]: 1824 mSDtfsCounter, 10824 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5535 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10824 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 5609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:36,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10824 Valid, 1925 Invalid, 5609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5535 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-04-02 06:42:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2023-04-02 06:42:36,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2093. [2023-04-02 06:42:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 2068 states have (on average 1.3186653771760155) internal successors, (2727), 2089 states have internal predecessors, (2727), 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 06:42:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2730 transitions. [2023-04-02 06:42:36,218 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2730 transitions. Word has length 90 [2023-04-02 06:42:36,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:36,220 INFO L495 AbstractCegarLoop]: Abstraction has 2093 states and 2730 transitions. [2023-04-02 06:42:36,220 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 06:42:36,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2730 transitions. [2023-04-02 06:42:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:42:36,229 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:36,230 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 06:42:36,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:42:36,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:36,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:36,231 INFO L85 PathProgramCache]: Analyzing trace with hash -14194633, now seen corresponding path program 1 times [2023-04-02 06:42:36,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:36,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652204485] [2023-04-02 06:42:36,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:36,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:37,390 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 06:42:37,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:37,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652204485] [2023-04-02 06:42:37,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652204485] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:37,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:37,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:42:37,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591742676] [2023-04-02 06:42:37,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:37,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:42:37,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:37,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:42:37,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:42:37,394 INFO L87 Difference]: Start difference. First operand 2093 states and 2730 transitions. 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 06:42:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:44,474 INFO L93 Difference]: Finished difference Result 2540 states and 3305 transitions. [2023-04-02 06:42:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:42:44,475 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 06:42:44,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:44,481 INFO L225 Difference]: With dead ends: 2540 [2023-04-02 06:42:44,481 INFO L226 Difference]: Without dead ends: 1497 [2023-04-02 06:42:44,483 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 06:42:44,484 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 5819 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5819 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 3109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:44,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5819 Valid, 888 Invalid, 3109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 06:42:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2023-04-02 06:42:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2023-04-02 06:42:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1472 states have (on average 1.3383152173913044) internal successors, (1970), 1493 states have internal predecessors, (1970), 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 06:42:44,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1973 transitions. [2023-04-02 06:42:44,544 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1973 transitions. Word has length 90 [2023-04-02 06:42:44,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:44,545 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 1973 transitions. [2023-04-02 06:42:44,545 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 06:42:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1973 transitions. [2023-04-02 06:42:44,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:42:44,549 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:44,550 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 06:42:44,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:42:44,550 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:44,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:44,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1267173705, now seen corresponding path program 1 times [2023-04-02 06:42:44,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:44,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104912165] [2023-04-02 06:42:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:44,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:45,726 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 06:42:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:45,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104912165] [2023-04-02 06:42:45,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104912165] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:45,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:45,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:42:45,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518063412] [2023-04-02 06:42:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:45,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:42:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:42:45,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:42:45,730 INFO L87 Difference]: Start difference. First operand 1497 states and 1973 transitions. 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 06:42:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:51,393 INFO L93 Difference]: Finished difference Result 2024 states and 2675 transitions. [2023-04-02 06:42:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:42:51,394 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 06:42:51,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:51,399 INFO L225 Difference]: With dead ends: 2024 [2023-04-02 06:42:51,399 INFO L226 Difference]: Without dead ends: 1257 [2023-04-02 06:42:51,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:42:51,401 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 4947 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4947 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:51,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4947 Valid, 784 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 06:42:51,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-04-02 06:42:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-04-02 06:42:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1232 states have (on average 1.3579545454545454) internal successors, (1673), 1253 states have internal predecessors, (1673), 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 06:42:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1676 transitions. [2023-04-02 06:42:51,458 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1676 transitions. Word has length 90 [2023-04-02 06:42:51,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:51,459 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1676 transitions. [2023-04-02 06:42:51,459 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 06:42:51,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1676 transitions. [2023-04-02 06:42:51,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 06:42:51,462 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:51,462 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 06:42:51,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:42:51,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:51,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:51,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1664974704, now seen corresponding path program 1 times [2023-04-02 06:42:51,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:51,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766290129] [2023-04-02 06:42:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:51,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:52,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:52,436 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 06:42:52,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:52,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766290129] [2023-04-02 06:42:52,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766290129] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:52,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:52,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:42:52,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112430720] [2023-04-02 06:42:52,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:52,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:42:52,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:52,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:42:52,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:42:52,438 INFO L87 Difference]: Start difference. First operand 1257 states and 1676 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 06:42:56,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:56,682 INFO L93 Difference]: Finished difference Result 1576 states and 2073 transitions. [2023-04-02 06:42:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:42:56,682 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 06:42:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:56,686 INFO L225 Difference]: With dead ends: 1576 [2023-04-02 06:42:56,686 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 06:42:56,688 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 06:42:56,688 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 3696 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:56,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 622 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:42:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 06:42:56,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2023-04-02 06:42:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 926 states have (on average 1.367170626349892) internal successors, (1266), 947 states have internal predecessors, (1266), 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 06:42:56,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1269 transitions. [2023-04-02 06:42:56,738 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1269 transitions. Word has length 91 [2023-04-02 06:42:56,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:56,741 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1269 transitions. [2023-04-02 06:42:56,741 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 06:42:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1269 transitions. [2023-04-02 06:42:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 06:42:56,747 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:56,748 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 06:42:56,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:42:56,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:56,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1898886345, now seen corresponding path program 1 times [2023-04-02 06:42:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:56,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509975685] [2023-04-02 06:42:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:56,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:57,896 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 06:42:57,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:57,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509975685] [2023-04-02 06:42:57,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509975685] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:57,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:57,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:42:57,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762102047] [2023-04-02 06:42:57,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:57,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:42:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:42:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:42:57,899 INFO L87 Difference]: Start difference. First operand 951 states and 1269 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 06:43:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:01,157 INFO L93 Difference]: Finished difference Result 1140 states and 1487 transitions. [2023-04-02 06:43:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:43:01,157 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 06:43:01,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:01,160 INFO L225 Difference]: With dead ends: 1140 [2023-04-02 06:43:01,160 INFO L226 Difference]: Without dead ends: 673 [2023-04-02 06:43:01,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:43:01,162 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2554 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:01,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 490 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:43:01,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-04-02 06:43:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2023-04-02 06:43:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 648 states have (on average 1.3719135802469136) internal successors, (889), 669 states have internal predecessors, (889), 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 06:43:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 892 transitions. [2023-04-02 06:43:01,201 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 892 transitions. Word has length 92 [2023-04-02 06:43:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:01,202 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 892 transitions. [2023-04-02 06:43:01,202 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 06:43:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 892 transitions. [2023-04-02 06:43:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 06:43:01,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:01,204 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 06:43:01,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:43:01,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:01,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1961159937, now seen corresponding path program 1 times [2023-04-02 06:43:01,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:01,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954130442] [2023-04-02 06:43:01,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:02,237 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 06:43:02,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:02,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954130442] [2023-04-02 06:43:02,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954130442] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:02,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:02,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:43:02,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197984734] [2023-04-02 06:43:02,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:02,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:43:02,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:02,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:43:02,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:43:02,240 INFO L87 Difference]: Start difference. First operand 673 states and 892 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 06:43:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:05,276 INFO L93 Difference]: Finished difference Result 1013 states and 1354 transitions. [2023-04-02 06:43:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:43:05,276 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 06:43:05,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:05,278 INFO L225 Difference]: With dead ends: 1013 [2023-04-02 06:43:05,279 INFO L226 Difference]: Without dead ends: 642 [2023-04-02 06:43:05,280 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 06:43:05,282 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 2504 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2504 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:05,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2504 Valid, 489 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 06:43:05,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-04-02 06:43:05,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2023-04-02 06:43:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3824959481361425) internal successors, (853), 638 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 06:43:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 856 transitions. [2023-04-02 06:43:05,328 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 856 transitions. Word has length 93 [2023-04-02 06:43:05,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:05,328 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 856 transitions. [2023-04-02 06:43:05,329 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 06:43:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 856 transitions. [2023-04-02 06:43:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:43:05,330 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:05,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:43:05,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:43:05,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:05,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:05,331 INFO L85 PathProgramCache]: Analyzing trace with hash -596349561, now seen corresponding path program 1 times [2023-04-02 06:43:05,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:05,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849620311] [2023-04-02 06:43:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:05,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:06,763 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 06:43:06,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849620311] [2023-04-02 06:43:06,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849620311] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:06,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:06,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:06,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189824320] [2023-04-02 06:43:06,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:06,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:06,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:06,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:06,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:06,766 INFO L87 Difference]: Start difference. First operand 642 states and 856 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 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 06:43:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:11,178 INFO L93 Difference]: Finished difference Result 1260 states and 1723 transitions. [2023-04-02 06:43:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:11,179 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 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 06:43:11,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:11,183 INFO L225 Difference]: With dead ends: 1260 [2023-04-02 06:43:11,183 INFO L226 Difference]: Without dead ends: 1136 [2023-04-02 06:43:11,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:43:11,185 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 5252 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5252 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:11,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5252 Valid, 2231 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:43:11,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-04-02 06:43:11,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 642. [2023-04-02 06:43:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.380875202593193) internal successors, (852), 638 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 06:43:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 855 transitions. [2023-04-02 06:43:11,243 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 855 transitions. Word has length 94 [2023-04-02 06:43:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:11,243 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 855 transitions. [2023-04-02 06:43:11,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 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 06:43:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 855 transitions. [2023-04-02 06:43:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:43:11,245 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:11,245 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 06:43:11,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:43:11,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:11,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:11,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1091497805, now seen corresponding path program 1 times [2023-04-02 06:43:11,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:11,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569420797] [2023-04-02 06:43:11,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:12,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:12,556 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 06:43:12,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569420797] [2023-04-02 06:43:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569420797] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:12,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:12,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:12,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573570102] [2023-04-02 06:43:12,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:12,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:12,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:12,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:12,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:12,559 INFO L87 Difference]: Start difference. First operand 642 states and 855 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 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 06:43:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:16,666 INFO L93 Difference]: Finished difference Result 1333 states and 1818 transitions. [2023-04-02 06:43:16,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:16,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 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 06:43:16,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:16,670 INFO L225 Difference]: With dead ends: 1333 [2023-04-02 06:43:16,670 INFO L226 Difference]: Without dead ends: 1141 [2023-04-02 06:43:16,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:43:16,672 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 4055 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:16,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4055 Valid, 2134 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:43:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2023-04-02 06:43:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 642. [2023-04-02 06:43:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3792544570502432) internal successors, (851), 638 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 06:43:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 854 transitions. [2023-04-02 06:43:16,737 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 854 transitions. Word has length 94 [2023-04-02 06:43:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:16,738 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 854 transitions. [2023-04-02 06:43:16,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 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 06:43:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 854 transitions. [2023-04-02 06:43:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:43:16,739 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:16,740 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 06:43:16,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:43:16,740 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:16,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:16,740 INFO L85 PathProgramCache]: Analyzing trace with hash 342013790, now seen corresponding path program 1 times [2023-04-02 06:43:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:16,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927473655] [2023-04-02 06:43:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:16,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:18,193 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 06:43:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927473655] [2023-04-02 06:43:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927473655] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:43:18,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375088232] [2023-04-02 06:43:18,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:18,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:43:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:18,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:43:18,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:43:18,195 INFO L87 Difference]: Start difference. First operand 642 states and 854 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 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 06:43:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:22,435 INFO L93 Difference]: Finished difference Result 1359 states and 1840 transitions. [2023-04-02 06:43:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:43:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 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 06:43:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:22,440 INFO L225 Difference]: With dead ends: 1359 [2023-04-02 06:43:22,440 INFO L226 Difference]: Without dead ends: 1137 [2023-04-02 06:43:22,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2023-04-02 06:43:22,441 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 4664 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 3435 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:22,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4664 Valid, 3079 Invalid, 3452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3435 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:43:22,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2023-04-02 06:43:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 642. [2023-04-02 06:43:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3776337115072934) internal successors, (850), 638 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 06:43:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 853 transitions. [2023-04-02 06:43:22,510 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 853 transitions. Word has length 94 [2023-04-02 06:43:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:22,510 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 853 transitions. [2023-04-02 06:43:22,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 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 06:43:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 853 transitions. [2023-04-02 06:43:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:43:22,512 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:22,512 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 06:43:22,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:43:22,513 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:22,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1688521424, now seen corresponding path program 1 times [2023-04-02 06:43:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118527473] [2023-04-02 06:43:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:23,845 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 06:43:23,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:23,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118527473] [2023-04-02 06:43:23,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118527473] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:23,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:23,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:43:23,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503828136] [2023-04-02 06:43:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:23,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:43:23,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:23,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:43:23,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:43:23,847 INFO L87 Difference]: Start difference. First operand 642 states and 853 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 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 06:43:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:27,383 INFO L93 Difference]: Finished difference Result 1205 states and 1562 transitions. [2023-04-02 06:43:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:43:27,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 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 06:43:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:27,386 INFO L225 Difference]: With dead ends: 1205 [2023-04-02 06:43:27,386 INFO L226 Difference]: Without dead ends: 859 [2023-04-02 06:43:27,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:43:27,387 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 3865 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3865 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:27,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3865 Valid, 1032 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 06:43:27,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-04-02 06:43:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 642. [2023-04-02 06:43:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3760129659643436) internal successors, (849), 638 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 06:43:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 852 transitions. [2023-04-02 06:43:27,466 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 852 transitions. Word has length 94 [2023-04-02 06:43:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:27,466 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 852 transitions. [2023-04-02 06:43:27,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 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 06:43:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 852 transitions. [2023-04-02 06:43:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:43:27,468 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:27,468 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 06:43:27,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:43:27,469 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:27,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:27,469 INFO L85 PathProgramCache]: Analyzing trace with hash 660049269, now seen corresponding path program 1 times [2023-04-02 06:43:27,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:27,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623165107] [2023-04-02 06:43:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:27,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:28,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:28,830 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 06:43:28,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:28,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623165107] [2023-04-02 06:43:28,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623165107] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:28,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:28,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265479509] [2023-04-02 06:43:28,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:28,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:28,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:28,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:28,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:28,832 INFO L87 Difference]: Start difference. First operand 642 states and 852 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 06:43:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:33,201 INFO L93 Difference]: Finished difference Result 1228 states and 1665 transitions. [2023-04-02 06:43:33,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:33,201 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 06:43:33,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:33,204 INFO L225 Difference]: With dead ends: 1228 [2023-04-02 06:43:33,204 INFO L226 Difference]: Without dead ends: 1129 [2023-04-02 06:43:33,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:43:33,205 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3262 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 3228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:33,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 2751 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3228 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:43:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2023-04-02 06:43:33,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 642. [2023-04-02 06:43:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3743922204213939) internal successors, (848), 638 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 06:43:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 851 transitions. [2023-04-02 06:43:33,285 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 851 transitions. Word has length 96 [2023-04-02 06:43:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:33,286 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 851 transitions. [2023-04-02 06:43:33,286 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 06:43:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 851 transitions. [2023-04-02 06:43:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:43:33,287 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:33,287 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 06:43:33,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:43:33,288 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:33,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash -989005971, now seen corresponding path program 1 times [2023-04-02 06:43:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:33,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666179351] [2023-04-02 06:43:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:33,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:34,560 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 06:43:34,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:34,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666179351] [2023-04-02 06:43:34,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666179351] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:34,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:34,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295802973] [2023-04-02 06:43:34,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:34,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:34,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:34,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:34,563 INFO L87 Difference]: Start difference. First operand 642 states and 851 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 06:43:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:39,872 INFO L93 Difference]: Finished difference Result 1274 states and 1729 transitions. [2023-04-02 06:43:39,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:39,873 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 06:43:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:39,875 INFO L225 Difference]: With dead ends: 1274 [2023-04-02 06:43:39,876 INFO L226 Difference]: Without dead ends: 1136 [2023-04-02 06:43:39,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:43:39,876 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 3842 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3842 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 3979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:39,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3842 Valid, 3272 Invalid, 3979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 06:43:39,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-04-02 06:43:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 642. [2023-04-02 06:43:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.372771474878444) internal successors, (847), 638 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 06:43:39,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 850 transitions. [2023-04-02 06:43:39,963 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 850 transitions. Word has length 96 [2023-04-02 06:43:39,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:39,964 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 850 transitions. [2023-04-02 06:43:39,964 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 06:43:39,964 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 850 transitions. [2023-04-02 06:43:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:43:39,966 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:39,966 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 06:43:39,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:43:39,966 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:39,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:39,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1528622638, now seen corresponding path program 1 times [2023-04-02 06:43:39,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:39,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927911633] [2023-04-02 06:43:39,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:39,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:41,214 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 06:43:41,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:41,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927911633] [2023-04-02 06:43:41,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927911633] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:41,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:41,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582296398] [2023-04-02 06:43:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:41,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:41,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:41,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:41,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:41,217 INFO L87 Difference]: Start difference. First operand 642 states and 850 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 06:43:45,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:45,889 INFO L93 Difference]: Finished difference Result 1228 states and 1664 transitions. [2023-04-02 06:43:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:45,890 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 06:43:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:45,893 INFO L225 Difference]: With dead ends: 1228 [2023-04-02 06:43:45,893 INFO L226 Difference]: Without dead ends: 1129 [2023-04-02 06:43:45,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:43:45,894 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 4599 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4599 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:45,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4599 Valid, 2600 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:43:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2023-04-02 06:43:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 642. [2023-04-02 06:43:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3711507293354943) internal successors, (846), 638 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 06:43:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 849 transitions. [2023-04-02 06:43:45,975 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 849 transitions. Word has length 96 [2023-04-02 06:43:45,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:45,976 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 849 transitions. [2023-04-02 06:43:45,976 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 06:43:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 849 transitions. [2023-04-02 06:43:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:43:45,978 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:45,978 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 06:43:45,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:43:45,978 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:45,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1380406902, now seen corresponding path program 1 times [2023-04-02 06:43:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:45,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947630803] [2023-04-02 06:43:45,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:45,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:47,203 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 06:43:47,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:47,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947630803] [2023-04-02 06:43:47,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947630803] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:47,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:47,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:47,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797493065] [2023-04-02 06:43:47,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:47,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:47,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:47,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:47,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:47,205 INFO L87 Difference]: Start difference. First operand 642 states and 849 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 06:43:51,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:51,444 INFO L93 Difference]: Finished difference Result 1199 states and 1616 transitions. [2023-04-02 06:43:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:51,444 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 06:43:51,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:51,447 INFO L225 Difference]: With dead ends: 1199 [2023-04-02 06:43:51,447 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 06:43:51,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:43:51,448 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 3579 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 2973 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3579 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:51,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3579 Valid, 2383 Invalid, 2991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2973 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:43:51,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 06:43:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 642. [2023-04-02 06:43:51,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3695299837925445) internal successors, (845), 638 states have internal predecessors, (845), 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 06:43:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 848 transitions. [2023-04-02 06:43:51,550 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 848 transitions. Word has length 96 [2023-04-02 06:43:51,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:51,551 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 848 transitions. [2023-04-02 06:43:51,551 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 06:43:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 848 transitions. [2023-04-02 06:43:51,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:43:51,552 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:51,552 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 06:43:51,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:43:51,553 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:51,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:51,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1207560551, now seen corresponding path program 1 times [2023-04-02 06:43:51,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:51,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706332315] [2023-04-02 06:43:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:51,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:52,696 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 06:43:52,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:52,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706332315] [2023-04-02 06:43:52,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706332315] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:52,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:52,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:52,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401824415] [2023-04-02 06:43:52,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:52,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:52,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:52,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:52,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:52,698 INFO L87 Difference]: Start difference. First operand 642 states and 848 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 06:43:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:43:57,951 INFO L93 Difference]: Finished difference Result 1274 states and 1726 transitions. [2023-04-02 06:43:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:43:57,952 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 06:43:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:43:57,955 INFO L225 Difference]: With dead ends: 1274 [2023-04-02 06:43:57,955 INFO L226 Difference]: Without dead ends: 1136 [2023-04-02 06:43:57,956 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 06:43:57,956 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 3045 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 3846 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 3861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:43:57,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 3144 Invalid, 3861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3846 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 06:43:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-04-02 06:43:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 642. [2023-04-02 06:43:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3679092382495948) internal successors, (844), 638 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 06:43:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 847 transitions. [2023-04-02 06:43:58,094 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 847 transitions. Word has length 96 [2023-04-02 06:43:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:43:58,094 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 847 transitions. [2023-04-02 06:43:58,094 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 06:43:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 847 transitions. [2023-04-02 06:43:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:43:58,096 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:43:58,096 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 06:43:58,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:43:58,098 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:43:58,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:43:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 236943948, now seen corresponding path program 1 times [2023-04-02 06:43:58,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:43:58,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944649307] [2023-04-02 06:43:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:43:58,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:43:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:43:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:43:59,244 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 06:43:59,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:43:59,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944649307] [2023-04-02 06:43:59,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944649307] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:43:59,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:43:59,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:43:59,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563895979] [2023-04-02 06:43:59,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:43:59,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:43:59,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:43:59,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:43:59,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:43:59,246 INFO L87 Difference]: Start difference. First operand 642 states and 847 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 06:44:04,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:04,353 INFO L93 Difference]: Finished difference Result 1228 states and 1659 transitions. [2023-04-02 06:44:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:04,354 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 06:44:04,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:04,357 INFO L225 Difference]: With dead ends: 1228 [2023-04-02 06:44:04,357 INFO L226 Difference]: Without dead ends: 1129 [2023-04-02 06:44:04,357 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 06:44:04,358 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 2985 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 3857 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 3872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:04,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 3250 Invalid, 3872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3857 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:44:04,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2023-04-02 06:44:04,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 642. [2023-04-02 06:44:04,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.366288492706645) internal successors, (843), 638 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 06:44:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 846 transitions. [2023-04-02 06:44:04,444 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 846 transitions. Word has length 96 [2023-04-02 06:44:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:04,444 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 846 transitions. [2023-04-02 06:44:04,445 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 06:44:04,445 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 846 transitions. [2023-04-02 06:44:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:44:04,446 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:04,446 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 06:44:04,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:44:04,446 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:04,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:04,447 INFO L85 PathProgramCache]: Analyzing trace with hash -334031214, now seen corresponding path program 1 times [2023-04-02 06:44:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:04,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709489155] [2023-04-02 06:44:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:05,583 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 06:44:05,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:05,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709489155] [2023-04-02 06:44:05,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709489155] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:05,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:05,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:05,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597860091] [2023-04-02 06:44:05,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:05,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:05,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:05,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:05,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:05,585 INFO L87 Difference]: Start difference. First operand 642 states and 846 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 06:44:09,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:09,917 INFO L93 Difference]: Finished difference Result 1195 states and 1609 transitions. [2023-04-02 06:44:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:09,918 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 06:44:09,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:09,921 INFO L225 Difference]: With dead ends: 1195 [2023-04-02 06:44:09,921 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 06:44:09,921 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 06:44:09,922 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 4703 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 3045 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4703 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:09,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4703 Valid, 2403 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3045 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:44:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 06:44:10,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 642. [2023-04-02 06:44:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3646677471636952) internal successors, (842), 638 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 06:44:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 845 transitions. [2023-04-02 06:44:10,024 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 845 transitions. Word has length 96 [2023-04-02 06:44:10,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:10,024 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 845 transitions. [2023-04-02 06:44:10,024 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 06:44:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 845 transitions. [2023-04-02 06:44:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:10,026 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:10,026 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] [2023-04-02 06:44:10,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:44:10,026 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:10,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash -969324568, now seen corresponding path program 1 times [2023-04-02 06:44:10,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:10,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207160954] [2023-04-02 06:44:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:10,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:11,177 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 06:44:11,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:11,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207160954] [2023-04-02 06:44:11,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207160954] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:11,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:11,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:11,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145811825] [2023-04-02 06:44:11,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:11,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:11,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:11,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:11,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:11,179 INFO L87 Difference]: Start difference. First operand 642 states and 845 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 06:44:15,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:15,680 INFO L93 Difference]: Finished difference Result 1199 states and 1610 transitions. [2023-04-02 06:44:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:15,681 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 06:44:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:15,684 INFO L225 Difference]: With dead ends: 1199 [2023-04-02 06:44:15,684 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 06:44:15,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:44:15,684 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4643 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 3067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:15,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 2454 Invalid, 3067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:44:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 06:44:15,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 642. [2023-04-02 06:44:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 617 states have (on average 1.3630470016207454) internal successors, (841), 638 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 06:44:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 844 transitions. [2023-04-02 06:44:15,770 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 844 transitions. Word has length 98 [2023-04-02 06:44:15,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:15,770 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 844 transitions. [2023-04-02 06:44:15,770 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 06:44:15,770 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 844 transitions. [2023-04-02 06:44:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:15,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:15,771 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 06:44:15,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:44:15,771 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:15,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2044044075, now seen corresponding path program 1 times [2023-04-02 06:44:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:15,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700178832] [2023-04-02 06:44:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:15,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:17,211 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 06:44:17,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:17,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700178832] [2023-04-02 06:44:17,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700178832] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:17,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:17,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:44:17,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705607750] [2023-04-02 06:44:17,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:17,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:44:17,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:17,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:44:17,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:44:17,213 INFO L87 Difference]: Start difference. First operand 642 states and 844 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 06:44:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:24,695 INFO L93 Difference]: Finished difference Result 1795 states and 2473 transitions. [2023-04-02 06:44:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:44:24,696 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 06:44:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:24,700 INFO L225 Difference]: With dead ends: 1795 [2023-04-02 06:44:24,700 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:44:24,700 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 06:44:24,701 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 6469 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 4560 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6469 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 4797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 4560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:24,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6469 Valid, 3869 Invalid, 4797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 4560 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 06:44:24,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:44:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 646. [2023-04-02 06:44:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.3607085346215781) internal successors, (845), 642 states have internal predecessors, (845), 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 06:44:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 848 transitions. [2023-04-02 06:44:24,808 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 848 transitions. Word has length 98 [2023-04-02 06:44:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:24,808 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 848 transitions. [2023-04-02 06:44:24,808 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 06:44:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 848 transitions. [2023-04-02 06:44:24,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:24,810 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:24,810 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 06:44:24,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:44:24,810 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:24,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1423907760, now seen corresponding path program 1 times [2023-04-02 06:44:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:24,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731228577] [2023-04-02 06:44:24,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:24,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:25,949 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 06:44:25,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:25,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731228577] [2023-04-02 06:44:25,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731228577] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:25,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:25,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:25,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442827799] [2023-04-02 06:44:25,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:25,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:25,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:25,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:25,952 INFO L87 Difference]: Start difference. First operand 646 states and 848 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 06:44:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:30,659 INFO L93 Difference]: Finished difference Result 1203 states and 1613 transitions. [2023-04-02 06:44:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:30,659 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 06:44:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:30,662 INFO L225 Difference]: With dead ends: 1203 [2023-04-02 06:44:30,662 INFO L226 Difference]: Without dead ends: 1117 [2023-04-02 06:44:30,663 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 06:44:30,663 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 3388 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 3292 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3388 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:30,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3388 Valid, 2606 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3292 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:44:30,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-04-02 06:44:30,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 646. [2023-04-02 06:44:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.359098228663446) internal successors, (844), 642 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 06:44:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 847 transitions. [2023-04-02 06:44:30,772 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 847 transitions. Word has length 98 [2023-04-02 06:44:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:30,773 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 847 transitions. [2023-04-02 06:44:30,773 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 06:44:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 847 transitions. [2023-04-02 06:44:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:30,774 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:30,774 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] [2023-04-02 06:44:30,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:44:30,774 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:30,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1218345743, now seen corresponding path program 1 times [2023-04-02 06:44:30,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:30,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240393235] [2023-04-02 06:44:30,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:30,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:31,939 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 06:44:31,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:31,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240393235] [2023-04-02 06:44:31,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240393235] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:31,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:31,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:31,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276910846] [2023-04-02 06:44:31,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:31,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:31,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:31,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:31,941 INFO L87 Difference]: Start difference. First operand 646 states and 847 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 06:44:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:36,308 INFO L93 Difference]: Finished difference Result 1199 states and 1608 transitions. [2023-04-02 06:44:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:36,309 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 06:44:36,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:36,312 INFO L225 Difference]: With dead ends: 1199 [2023-04-02 06:44:36,312 INFO L226 Difference]: Without dead ends: 1117 [2023-04-02 06:44:36,313 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 06:44:36,314 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2353 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 3034 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 2455 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3034 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:44:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-04-02 06:44:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 646. [2023-04-02 06:44:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.357487922705314) internal successors, (843), 642 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 06:44:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 846 transitions. [2023-04-02 06:44:36,429 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 846 transitions. Word has length 98 [2023-04-02 06:44:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 846 transitions. [2023-04-02 06:44:36,429 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 06:44:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 846 transitions. [2023-04-02 06:44:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:36,430 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:36,430 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 06:44:36,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:44:36,431 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:36,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1266351522, now seen corresponding path program 1 times [2023-04-02 06:44:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016546958] [2023-04-02 06:44:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:37,541 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 06:44:37,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:37,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016546958] [2023-04-02 06:44:37,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016546958] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:37,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:37,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:37,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457732359] [2023-04-02 06:44:37,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:37,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:37,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:37,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:37,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:37,544 INFO L87 Difference]: Start difference. First operand 646 states and 846 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 06:44:41,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:41,981 INFO L93 Difference]: Finished difference Result 1203 states and 1611 transitions. [2023-04-02 06:44:41,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:41,981 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 06:44:41,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:41,985 INFO L225 Difference]: With dead ends: 1203 [2023-04-02 06:44:41,985 INFO L226 Difference]: Without dead ends: 1117 [2023-04-02 06:44:41,985 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 06:44:41,986 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4632 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4632 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:41,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4632 Valid, 2452 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3029 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:44:41,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-04-02 06:44:42,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 646. [2023-04-02 06:44:42,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.355877616747182) internal successors, (842), 642 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 06:44:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 845 transitions. [2023-04-02 06:44:42,106 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 845 transitions. Word has length 98 [2023-04-02 06:44:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:42,107 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 845 transitions. [2023-04-02 06:44:42,107 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 06:44:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 845 transitions. [2023-04-02 06:44:42,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:42,108 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:42,108 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 06:44:42,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:44:42,108 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:42,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1971031356, now seen corresponding path program 1 times [2023-04-02 06:44:42,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:42,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660021032] [2023-04-02 06:44:42,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:42,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:43,174 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 06:44:43,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:43,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660021032] [2023-04-02 06:44:43,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660021032] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:43,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:43,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:43,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158016091] [2023-04-02 06:44:43,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:43,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:43,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:43,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:43,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:43,176 INFO L87 Difference]: Start difference. First operand 646 states and 845 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 06:44:47,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:47,855 INFO L93 Difference]: Finished difference Result 1237 states and 1659 transitions. [2023-04-02 06:44:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:47,856 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 06:44:47,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:47,859 INFO L225 Difference]: With dead ends: 1237 [2023-04-02 06:44:47,859 INFO L226 Difference]: Without dead ends: 1129 [2023-04-02 06:44:47,860 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 06:44:47,860 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 4437 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4437 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 3280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:47,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4437 Valid, 2689 Invalid, 3280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:44:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2023-04-02 06:44:47,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 646. [2023-04-02 06:44:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.35426731078905) internal successors, (841), 642 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 06:44:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 844 transitions. [2023-04-02 06:44:47,981 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 844 transitions. Word has length 98 [2023-04-02 06:44:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:47,981 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 844 transitions. [2023-04-02 06:44:47,981 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 06:44:47,981 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 844 transitions. [2023-04-02 06:44:47,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:47,982 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:47,983 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 06:44:47,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:44:47,983 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:47,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash 821074425, now seen corresponding path program 1 times [2023-04-02 06:44:47,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:47,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249100797] [2023-04-02 06:44:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:49,101 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 06:44:49,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:49,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249100797] [2023-04-02 06:44:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249100797] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:49,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:44:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672683896] [2023-04-02 06:44:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:49,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:44:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:44:49,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:44:49,103 INFO L87 Difference]: Start difference. First operand 646 states and 844 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 06:44:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:44:54,675 INFO L93 Difference]: Finished difference Result 1293 states and 1733 transitions. [2023-04-02 06:44:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:44:54,675 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 06:44:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:44:54,678 INFO L225 Difference]: With dead ends: 1293 [2023-04-02 06:44:54,678 INFO L226 Difference]: Without dead ends: 1140 [2023-04-02 06:44:54,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:44:54,680 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 2017 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:44:54,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 3318 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:44:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-04-02 06:44:54,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 646. [2023-04-02 06:44:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.3526570048309179) internal successors, (840), 642 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 06:44:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 843 transitions. [2023-04-02 06:44:54,828 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 843 transitions. Word has length 98 [2023-04-02 06:44:54,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:44:54,829 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 843 transitions. [2023-04-02 06:44:54,829 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 06:44:54,829 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 843 transitions. [2023-04-02 06:44:54,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:44:54,830 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:44:54,830 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 06:44:54,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:44:54,830 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:44:54,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:44:54,830 INFO L85 PathProgramCache]: Analyzing trace with hash 686320770, now seen corresponding path program 1 times [2023-04-02 06:44:54,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:44:54,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081041237] [2023-04-02 06:44:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:44:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:44:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:44:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:44:56,150 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 06:44:56,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:44:56,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081041237] [2023-04-02 06:44:56,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081041237] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:44:56,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:44:56,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:44:56,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144085130] [2023-04-02 06:44:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:44:56,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:44:56,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:44:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:44:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:44:56,152 INFO L87 Difference]: Start difference. First operand 646 states and 843 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 06:45:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:03,964 INFO L93 Difference]: Finished difference Result 1795 states and 2471 transitions. [2023-04-02 06:45:03,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:45:03,964 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 06:45:03,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:03,968 INFO L225 Difference]: With dead ends: 1795 [2023-04-02 06:45:03,968 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:45:03,969 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 06:45:03,969 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 6223 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 5035 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6223 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 5260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 5035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:03,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6223 Valid, 4423 Invalid, 5260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 5035 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 06:45:03,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:45:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 650. [2023-04-02 06:45:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 625 states have (on average 1.3504) internal successors, (844), 646 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 06:45:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 847 transitions. [2023-04-02 06:45:04,099 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 847 transitions. Word has length 98 [2023-04-02 06:45:04,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:04,100 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 847 transitions. [2023-04-02 06:45:04,100 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 06:45:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 847 transitions. [2023-04-02 06:45:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:45:04,101 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:04,101 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 06:45:04,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:45:04,101 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:04,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:04,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1305685331, now seen corresponding path program 1 times [2023-04-02 06:45:04,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:04,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818050088] [2023-04-02 06:45:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:05,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:05,418 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 06:45:05,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:05,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818050088] [2023-04-02 06:45:05,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818050088] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:05,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:05,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:45:05,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771238621] [2023-04-02 06:45:05,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:05,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:45:05,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:45:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:45:05,420 INFO L87 Difference]: Start difference. First operand 650 states and 847 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 06:45:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:12,554 INFO L93 Difference]: Finished difference Result 1663 states and 2279 transitions. [2023-04-02 06:45:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:45:12,554 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 06:45:12,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:12,557 INFO L225 Difference]: With dead ends: 1663 [2023-04-02 06:45:12,557 INFO L226 Difference]: Without dead ends: 1577 [2023-04-02 06:45:12,557 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 06:45:12,558 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 6508 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 4373 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6508 SdHoareTripleChecker+Valid, 3766 SdHoareTripleChecker+Invalid, 4620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 4373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:12,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6508 Valid, 3766 Invalid, 4620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 4373 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 06:45:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2023-04-02 06:45:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 654. [2023-04-02 06:45:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 629 states have (on average 1.3481717011128775) internal successors, (848), 650 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 06:45:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 851 transitions. [2023-04-02 06:45:12,696 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 851 transitions. Word has length 98 [2023-04-02 06:45:12,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:12,696 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 851 transitions. [2023-04-02 06:45:12,696 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 06:45:12,696 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 851 transitions. [2023-04-02 06:45:12,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:45:12,697 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:12,697 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 06:45:12,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:45:12,698 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:12,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:12,698 INFO L85 PathProgramCache]: Analyzing trace with hash 160651753, now seen corresponding path program 1 times [2023-04-02 06:45:12,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:12,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839058619] [2023-04-02 06:45:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:12,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:13,847 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 06:45:13,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:13,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839058619] [2023-04-02 06:45:13,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839058619] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:13,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:13,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:45:13,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761142919] [2023-04-02 06:45:13,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:13,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:45:13,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:13,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:45:13,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:45:13,849 INFO L87 Difference]: Start difference. First operand 654 states and 851 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 06:45:18,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:18,345 INFO L93 Difference]: Finished difference Result 1203 states and 1607 transitions. [2023-04-02 06:45:18,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:45:18,345 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 06:45:18,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:18,347 INFO L225 Difference]: With dead ends: 1203 [2023-04-02 06:45:18,347 INFO L226 Difference]: Without dead ends: 1121 [2023-04-02 06:45:18,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:45:18,348 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 3417 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3417 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 3092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:18,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3417 Valid, 2523 Invalid, 3092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:45:18,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2023-04-02 06:45:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 654. [2023-04-02 06:45:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 629 states have (on average 1.3465818759936408) internal successors, (847), 650 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 06:45:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 850 transitions. [2023-04-02 06:45:18,518 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 850 transitions. Word has length 98 [2023-04-02 06:45:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:18,518 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 850 transitions. [2023-04-02 06:45:18,518 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 06:45:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 850 transitions. [2023-04-02 06:45:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:45:18,519 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:18,519 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 06:45:18,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:45:18,519 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:18,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:18,519 INFO L85 PathProgramCache]: Analyzing trace with hash 524428487, now seen corresponding path program 1 times [2023-04-02 06:45:18,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:18,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158792416] [2023-04-02 06:45:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:18,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:19,716 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 06:45:19,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:19,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158792416] [2023-04-02 06:45:19,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158792416] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:19,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:19,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:45:19,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931181833] [2023-04-02 06:45:19,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:19,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:45:19,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:19,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:45:19,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:45:19,718 INFO L87 Difference]: Start difference. First operand 654 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 06:45:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:24,519 INFO L93 Difference]: Finished difference Result 1207 states and 1609 transitions. [2023-04-02 06:45:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:45:24,519 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 06:45:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:24,521 INFO L225 Difference]: With dead ends: 1207 [2023-04-02 06:45:24,521 INFO L226 Difference]: Without dead ends: 1121 [2023-04-02 06:45:24,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:45:24,522 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 3305 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 3318 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:24,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 2678 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3318 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:45:24,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2023-04-02 06:45:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 654. [2023-04-02 06:45:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 629 states have (on average 1.3449920508744038) internal successors, (846), 650 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 06:45:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 849 transitions. [2023-04-02 06:45:24,667 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 849 transitions. Word has length 98 [2023-04-02 06:45:24,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:24,667 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 849 transitions. [2023-04-02 06:45:24,667 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 06:45:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 849 transitions. [2023-04-02 06:45:24,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:45:24,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:24,668 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 06:45:24,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:45:24,668 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:24,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:24,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1015998081, now seen corresponding path program 1 times [2023-04-02 06:45:24,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:24,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593330249] [2023-04-02 06:45:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:24,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:25,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:25,657 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 06:45:25,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:25,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593330249] [2023-04-02 06:45:25,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593330249] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:25,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:25,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:45:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766961937] [2023-04-02 06:45:25,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:25,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:45:25,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:45:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:45:25,659 INFO L87 Difference]: Start difference. First operand 654 states and 849 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 06:45:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:30,150 INFO L93 Difference]: Finished difference Result 1203 states and 1604 transitions. [2023-04-02 06:45:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:45:30,150 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 06:45:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:30,152 INFO L225 Difference]: With dead ends: 1203 [2023-04-02 06:45:30,152 INFO L226 Difference]: Without dead ends: 1121 [2023-04-02 06:45:30,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:45:30,153 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 3409 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 3060 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:30,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3409 Valid, 2524 Invalid, 3078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3060 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:45:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2023-04-02 06:45:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 654. [2023-04-02 06:45:30,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 629 states have (on average 1.343402225755167) internal successors, (845), 650 states have internal predecessors, (845), 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 06:45:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 848 transitions. [2023-04-02 06:45:30,299 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 848 transitions. Word has length 98 [2023-04-02 06:45:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:30,299 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 848 transitions. [2023-04-02 06:45:30,300 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 06:45:30,300 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 848 transitions. [2023-04-02 06:45:30,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:45:30,300 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:30,301 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 06:45:30,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:45:30,301 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:30,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:30,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1092832019, now seen corresponding path program 1 times [2023-04-02 06:45:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:30,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748651877] [2023-04-02 06:45:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:30,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:31,323 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 06:45:31,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:31,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748651877] [2023-04-02 06:45:31,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748651877] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:31,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:31,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:45:31,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324922837] [2023-04-02 06:45:31,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:31,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:45:31,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:31,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:45:31,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:45:31,325 INFO L87 Difference]: Start difference. First operand 654 states and 848 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 06:45:36,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:36,176 INFO L93 Difference]: Finished difference Result 1227 states and 1641 transitions. [2023-04-02 06:45:36,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:45:36,177 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 06:45:36,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:36,178 INFO L225 Difference]: With dead ends: 1227 [2023-04-02 06:45:36,178 INFO L226 Difference]: Without dead ends: 1133 [2023-04-02 06:45:36,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:45:36,179 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 4284 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:36,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 2802 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:45:36,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-04-02 06:45:36,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 654. [2023-04-02 06:45:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 629 states have (on average 1.34181240063593) internal successors, (844), 650 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 06:45:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 847 transitions. [2023-04-02 06:45:36,335 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 847 transitions. Word has length 98 [2023-04-02 06:45:36,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:36,335 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 847 transitions. [2023-04-02 06:45:36,335 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 06:45:36,335 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 847 transitions. [2023-04-02 06:45:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:45:36,336 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:36,336 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 06:45:36,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:45:36,336 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:36,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:36,337 INFO L85 PathProgramCache]: Analyzing trace with hash 32225548, now seen corresponding path program 1 times [2023-04-02 06:45:36,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:36,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036045597] [2023-04-02 06:45:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:36,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:37,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:37,485 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 06:45:37,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:37,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036045597] [2023-04-02 06:45:37,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036045597] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:37,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:37,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:45:37,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915848022] [2023-04-02 06:45:37,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:37,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:45:37,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:37,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:45:37,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:45:37,487 INFO L87 Difference]: Start difference. First operand 654 states and 847 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 06:45:42,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:42,823 INFO L93 Difference]: Finished difference Result 1241 states and 1652 transitions. [2023-04-02 06:45:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:45:42,823 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 06:45:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:42,825 INFO L225 Difference]: With dead ends: 1241 [2023-04-02 06:45:42,825 INFO L226 Difference]: Without dead ends: 1133 [2023-04-02 06:45:42,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:45:42,826 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 4252 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 3641 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 3005 SdHoareTripleChecker+Invalid, 3660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:42,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4252 Valid, 3005 Invalid, 3660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3641 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:45:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-04-02 06:45:42,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 650. [2023-04-02 06:45:42,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 625 states have (on average 1.3424) internal successors, (839), 646 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 06:45:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 842 transitions. [2023-04-02 06:45:42,987 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 842 transitions. Word has length 99 [2023-04-02 06:45:42,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:42,987 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 842 transitions. [2023-04-02 06:45:42,987 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 06:45:42,987 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 842 transitions. [2023-04-02 06:45:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:45:42,988 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:42,988 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 06:45:42,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:45:42,988 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:42,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:42,989 INFO L85 PathProgramCache]: Analyzing trace with hash -462829298, now seen corresponding path program 1 times [2023-04-02 06:45:42,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:42,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200758692] [2023-04-02 06:45:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:45:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:45:43,990 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 06:45:43,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:45:43,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200758692] [2023-04-02 06:45:43,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200758692] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:45:43,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:45:43,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:45:43,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504397545] [2023-04-02 06:45:43,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:45:43,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:45:43,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:45:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:45:43,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:45:43,993 INFO L87 Difference]: Start difference. First operand 650 states and 842 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 06:45:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:45:49,459 INFO L93 Difference]: Finished difference Result 1241 states and 1653 transitions. [2023-04-02 06:45:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:45:49,459 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 06:45:49,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:45:49,461 INFO L225 Difference]: With dead ends: 1241 [2023-04-02 06:45:49,461 INFO L226 Difference]: Without dead ends: 1133 [2023-04-02 06:45:49,461 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 06:45:49,462 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 2945 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 3790 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2945 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:45:49,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2945 Valid, 3154 Invalid, 3808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3790 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 06:45:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-04-02 06:45:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 646. [2023-04-02 06:45:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 621 states have (on average 1.3429951690821256) internal successors, (834), 642 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 06:45:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 837 transitions. [2023-04-02 06:45:49,625 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 837 transitions. Word has length 99 [2023-04-02 06:45:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:45:49,625 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 837 transitions. [2023-04-02 06:45:49,625 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 06:45:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 837 transitions. [2023-04-02 06:45:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:45:49,626 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:45:49,626 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 06:45:49,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 06:45:49,627 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:45:49,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:45:49,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1544932783, now seen corresponding path program 1 times [2023-04-02 06:45:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:45:49,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155348766] [2023-04-02 06:45:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:45:49,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:45:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat