/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:34:37,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:34:37,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:34:37,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 08:34:37,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 08:34:37,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 08:34:37,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 08:34:37,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 08:34:37,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 08:34:37,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 08:34:37,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 08:34:37,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 08:34:37,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:34:37,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:34:37,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:34:37,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:34:37,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:34:37,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:34:37,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:34:37,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:34:37,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:34:37,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:34:37,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:34:37,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:34:37,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 08:34:37,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:34:37,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:34:37,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:34:37,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 08:34:37,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:34:37,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:34:37,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:34:37,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:34:37,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:34:37,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:34:37,281 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:34:37,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:34:37,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:34:37,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:34:37,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:34:37,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:34:37,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:34:37,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:34:37,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:34:37,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:34:37,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 08:34:37,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:34:37,285 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 08:34:37,285 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:34:37,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:34:37,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:34:37,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:34:37,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:34:37,467 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:34:37,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2022-01-10 08:34:37,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b283d642/e212ec3fff6b4c0b814df46e2e673afb/FLAG9ed0e900e [2022-01-10 08:34:37,906 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:34:37,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2022-01-10 08:34:37,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b283d642/e212ec3fff6b4c0b814df46e2e673afb/FLAG9ed0e900e [2022-01-10 08:34:38,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b283d642/e212ec3fff6b4c0b814df46e2e673afb [2022-01-10 08:34:38,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:34:38,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 08:34:38,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:34:38,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:34:38,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:34:38,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:38,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431e8d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38, skipping insertion in model container [2022-01-10 08:34:38,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:38,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:34:38,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:34:38,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[901,914] [2022-01-10 08:34:38,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1116,1129] [2022-01-10 08:34:38,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1625,1638] [2022-01-10 08:34:38,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1840,1853] [2022-01-10 08:34:38,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2157,2170] [2022-01-10 08:34:38,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2372,2385] [2022-01-10 08:34:38,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2867,2880] [2022-01-10 08:34:38,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3082,3095] [2022-01-10 08:34:38,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3384,3397] [2022-01-10 08:34:38,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3602,3615] [2022-01-10 08:34:38,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3878,3891] [2022-01-10 08:34:38,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4096,4109] [2022-01-10 08:34:38,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4582,4595] [2022-01-10 08:34:38,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4800,4813] [2022-01-10 08:34:38,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47686,47699] [2022-01-10 08:34:38,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47907,47920] [2022-01-10 08:34:38,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:34:38,842 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:34:38,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[901,914] [2022-01-10 08:34:38,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1116,1129] [2022-01-10 08:34:38,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1625,1638] [2022-01-10 08:34:38,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1840,1853] [2022-01-10 08:34:38,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2157,2170] [2022-01-10 08:34:38,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2372,2385] [2022-01-10 08:34:38,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2867,2880] [2022-01-10 08:34:38,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3082,3095] [2022-01-10 08:34:38,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3384,3397] [2022-01-10 08:34:38,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3602,3615] [2022-01-10 08:34:38,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3878,3891] [2022-01-10 08:34:38,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4096,4109] [2022-01-10 08:34:38,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4582,4595] [2022-01-10 08:34:38,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4800,4813] [2022-01-10 08:34:38,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47686,47699] [2022-01-10 08:34:38,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47907,47920] [2022-01-10 08:34:38,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:34:38,958 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:34:38,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38 WrapperNode [2022-01-10 08:34:38,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:34:38,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:34:38,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:34:38,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:34:38,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:38,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,037 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1627 [2022-01-10 08:34:39,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:34:39,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:34:39,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:34:39,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:34:39,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:34:39,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:34:39,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:34:39,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:34:39,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (1/1) ... [2022-01-10 08:34:39,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:34:39,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:34:39,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 08:34:39,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 08:34:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:34:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:34:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:34:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:34:39,330 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:34:39,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:34:40,113 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:34:40,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:34:40,120 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 08:34:40,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:34:40 BoogieIcfgContainer [2022-01-10 08:34:40,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:34:40,122 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 08:34:40,122 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 08:34:40,125 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 08:34:40,127 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:34:40" (1/1) ... [2022-01-10 08:34:40,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:34:40 BasicIcfg [2022-01-10 08:34:40,371 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 08:34:40,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:34:40,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:34:40,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:34:40,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:34:38" (1/4) ... [2022-01-10 08:34:40,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4436fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:34:40, skipping insertion in model container [2022-01-10 08:34:40,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:34:38" (2/4) ... [2022-01-10 08:34:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4436fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:34:40, skipping insertion in model container [2022-01-10 08:34:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:34:40" (3/4) ... [2022-01-10 08:34:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4436fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:34:40, skipping insertion in model container [2022-01-10 08:34:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:34:40" (4/4) ... [2022-01-10 08:34:40,377 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.cTransformedIcfg [2022-01-10 08:34:40,381 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:34:40,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-01-10 08:34:40,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:34:40,422 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 08:34:40,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-01-10 08:34:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 287 states have (on average 1.9686411149825784) internal successors, (565), 303 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:40,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 08:34:40,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:40,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:40,444 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:40,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:40,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1740651176, now seen corresponding path program 1 times [2022-01-10 08:34:40,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:40,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090418448] [2022-01-10 08:34:40,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:40,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:40,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:40,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:40,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090418448] [2022-01-10 08:34:40,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090418448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:40,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:40,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:34:40,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237983319] [2022-01-10 08:34:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:40,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:34:40,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:40,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:34:40,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:34:40,631 INFO L87 Difference]: Start difference. First operand has 304 states, 287 states have (on average 1.9686411149825784) internal successors, (565), 303 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:41,035 INFO L93 Difference]: Finished difference Result 332 states and 593 transitions. [2022-01-10 08:34:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:34:41,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-01-10 08:34:41,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:41,048 INFO L225 Difference]: With dead ends: 332 [2022-01-10 08:34:41,048 INFO L226 Difference]: Without dead ends: 312 [2022-01-10 08:34:41,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:41,057 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 33 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:41,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 1306 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 08:34:41,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-01-10 08:34:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 302. [2022-01-10 08:34:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 286 states have (on average 1.486013986013986) internal successors, (425), 301 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 425 transitions. [2022-01-10 08:34:41,111 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 425 transitions. Word has length 7 [2022-01-10 08:34:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:41,111 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 425 transitions. [2022-01-10 08:34:41,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 425 transitions. [2022-01-10 08:34:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 08:34:41,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:41,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:41,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 08:34:41,112 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:41,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1874390799, now seen corresponding path program 1 times [2022-01-10 08:34:41,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:41,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238458604] [2022-01-10 08:34:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:41,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:41,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:41,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238458604] [2022-01-10 08:34:41,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238458604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:41,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:41,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 08:34:41,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641634617] [2022-01-10 08:34:41,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:41,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:34:41,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:41,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:34:41,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:41,237 INFO L87 Difference]: Start difference. First operand 302 states and 425 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:41,741 INFO L93 Difference]: Finished difference Result 312 states and 434 transitions. [2022-01-10 08:34:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 08:34:41,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 08:34:41,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:41,745 INFO L225 Difference]: With dead ends: 312 [2022-01-10 08:34:41,745 INFO L226 Difference]: Without dead ends: 307 [2022-01-10 08:34:41,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:41,747 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 13 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:41,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1022 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 08:34:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-01-10 08:34:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 300. [2022-01-10 08:34:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 284 states have (on average 1.4859154929577465) internal successors, (422), 299 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 422 transitions. [2022-01-10 08:34:41,754 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 422 transitions. Word has length 8 [2022-01-10 08:34:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:41,754 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 422 transitions. [2022-01-10 08:34:41,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 422 transitions. [2022-01-10 08:34:41,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 08:34:41,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:41,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:41,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 08:34:41,755 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:41,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:41,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1875345136, now seen corresponding path program 1 times [2022-01-10 08:34:41,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:41,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209527399] [2022-01-10 08:34:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:41,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:41,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:41,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:41,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209527399] [2022-01-10 08:34:41,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209527399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:41,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:41,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:34:41,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582167804] [2022-01-10 08:34:41,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:41,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:34:41,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:41,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:34:41,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:34:41,817 INFO L87 Difference]: Start difference. First operand 300 states and 422 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:42,115 INFO L93 Difference]: Finished difference Result 307 states and 429 transitions. [2022-01-10 08:34:42,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:34:42,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 08:34:42,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:42,116 INFO L225 Difference]: With dead ends: 307 [2022-01-10 08:34:42,116 INFO L226 Difference]: Without dead ends: 305 [2022-01-10 08:34:42,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:42,117 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 50 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:42,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 887 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 08:34:42,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-10 08:34:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 302. [2022-01-10 08:34:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 286 states have (on average 1.4825174825174825) internal successors, (424), 301 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 424 transitions. [2022-01-10 08:34:42,122 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 424 transitions. Word has length 8 [2022-01-10 08:34:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:42,122 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 424 transitions. [2022-01-10 08:34:42,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 424 transitions. [2022-01-10 08:34:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 08:34:42,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:42,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:42,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 08:34:42,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:42,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:42,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1993840513, now seen corresponding path program 1 times [2022-01-10 08:34:42,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:42,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969374820] [2022-01-10 08:34:42,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:42,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:42,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:42,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969374820] [2022-01-10 08:34:42,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969374820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:42,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:42,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:34:42,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559071960] [2022-01-10 08:34:42,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:42,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:34:42,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:42,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:34:42,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:34:42,244 INFO L87 Difference]: Start difference. First operand 302 states and 424 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:42,590 INFO L93 Difference]: Finished difference Result 305 states and 427 transitions. [2022-01-10 08:34:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:34:42,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-10 08:34:42,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:42,592 INFO L225 Difference]: With dead ends: 305 [2022-01-10 08:34:42,592 INFO L226 Difference]: Without dead ends: 303 [2022-01-10 08:34:42,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:42,593 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 41 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:42,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 889 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 08:34:42,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-01-10 08:34:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-01-10 08:34:42,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 287 states have (on average 1.480836236933798) internal successors, (425), 302 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 425 transitions. [2022-01-10 08:34:42,598 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 425 transitions. Word has length 9 [2022-01-10 08:34:42,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:42,598 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 425 transitions. [2022-01-10 08:34:42,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 425 transitions. [2022-01-10 08:34:42,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 08:34:42,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:42,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:42,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 08:34:42,602 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -525242522, now seen corresponding path program 1 times [2022-01-10 08:34:42,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:42,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818321873] [2022-01-10 08:34:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:42,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:42,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:42,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818321873] [2022-01-10 08:34:42,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818321873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:42,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:42,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 08:34:42,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505687569] [2022-01-10 08:34:42,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:42,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 08:34:42,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:42,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 08:34:42,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:42,743 INFO L87 Difference]: Start difference. First operand 303 states and 425 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:43,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:43,364 INFO L93 Difference]: Finished difference Result 346 states and 469 transitions. [2022-01-10 08:34:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:43,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 08:34:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:43,365 INFO L225 Difference]: With dead ends: 346 [2022-01-10 08:34:43,365 INFO L226 Difference]: Without dead ends: 344 [2022-01-10 08:34:43,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 08:34:43,366 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 56 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:43,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 988 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 08:34:43,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-01-10 08:34:43,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 305. [2022-01-10 08:34:43,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 289 states have (on average 1.480968858131488) internal successors, (428), 304 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 428 transitions. [2022-01-10 08:34:43,374 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 428 transitions. Word has length 11 [2022-01-10 08:34:43,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:43,374 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 428 transitions. [2022-01-10 08:34:43,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:43,374 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 428 transitions. [2022-01-10 08:34:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 08:34:43,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:43,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:43,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 08:34:43,375 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:43,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:43,375 INFO L85 PathProgramCache]: Analyzing trace with hash 421368490, now seen corresponding path program 1 times [2022-01-10 08:34:43,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:43,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848885388] [2022-01-10 08:34:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:43,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:43,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:43,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:43,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848885388] [2022-01-10 08:34:43,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848885388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:43,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:43,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:43,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118364117] [2022-01-10 08:34:43,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:43,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:43,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:43,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:43,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:43,508 INFO L87 Difference]: Start difference. First operand 305 states and 428 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:44,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:44,320 INFO L93 Difference]: Finished difference Result 344 states and 467 transitions. [2022-01-10 08:34:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:44,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 08:34:44,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:44,321 INFO L225 Difference]: With dead ends: 344 [2022-01-10 08:34:44,321 INFO L226 Difference]: Without dead ends: 342 [2022-01-10 08:34:44,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:34:44,322 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 57 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:44,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 1285 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:34:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-01-10 08:34:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 307. [2022-01-10 08:34:44,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 291 states have (on average 1.47766323024055) internal successors, (430), 306 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:44,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 430 transitions. [2022-01-10 08:34:44,329 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 430 transitions. Word has length 11 [2022-01-10 08:34:44,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:44,330 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 430 transitions. [2022-01-10 08:34:44,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 430 transitions. [2022-01-10 08:34:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 08:34:44,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:44,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:44,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 08:34:44,330 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:44,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash 897353439, now seen corresponding path program 1 times [2022-01-10 08:34:44,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:44,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953885351] [2022-01-10 08:34:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:44,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:44,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:44,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953885351] [2022-01-10 08:34:44,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953885351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:44,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:44,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:34:44,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094458100] [2022-01-10 08:34:44,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:44,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:34:44,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:34:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:34:44,475 INFO L87 Difference]: Start difference. First operand 307 states and 430 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:45,187 INFO L93 Difference]: Finished difference Result 336 states and 461 transitions. [2022-01-10 08:34:45,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:45,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 08:34:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:45,188 INFO L225 Difference]: With dead ends: 336 [2022-01-10 08:34:45,188 INFO L226 Difference]: Without dead ends: 332 [2022-01-10 08:34:45,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-01-10 08:34:45,189 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 69 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:45,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1152 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 08:34:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-01-10 08:34:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 303. [2022-01-10 08:34:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 288 states have (on average 1.4756944444444444) internal successors, (425), 302 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 425 transitions. [2022-01-10 08:34:45,195 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 425 transitions. Word has length 12 [2022-01-10 08:34:45,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:45,195 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 425 transitions. [2022-01-10 08:34:45,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:45,198 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 425 transitions. [2022-01-10 08:34:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 08:34:45,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:45,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:45,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 08:34:45,199 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 177523709, now seen corresponding path program 1 times [2022-01-10 08:34:45,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:45,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303622646] [2022-01-10 08:34:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:45,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:45,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:45,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303622646] [2022-01-10 08:34:45,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303622646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:45,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:45,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:34:45,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471263904] [2022-01-10 08:34:45,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:45,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:34:45,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:45,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:34:45,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:34:45,342 INFO L87 Difference]: Start difference. First operand 303 states and 425 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:46,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:46,067 INFO L93 Difference]: Finished difference Result 332 states and 456 transitions. [2022-01-10 08:34:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:46,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 08:34:46,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:46,068 INFO L225 Difference]: With dead ends: 332 [2022-01-10 08:34:46,068 INFO L226 Difference]: Without dead ends: 327 [2022-01-10 08:34:46,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-01-10 08:34:46,069 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 114 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:46,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1156 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 08:34:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-01-10 08:34:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 298. [2022-01-10 08:34:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 284 states have (on average 1.4753521126760563) internal successors, (419), 297 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 419 transitions. [2022-01-10 08:34:46,074 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 419 transitions. Word has length 12 [2022-01-10 08:34:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:46,074 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 419 transitions. [2022-01-10 08:34:46,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 419 transitions. [2022-01-10 08:34:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 08:34:46,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:46,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:46,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 08:34:46,075 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash 179341985, now seen corresponding path program 1 times [2022-01-10 08:34:46,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:46,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943560838] [2022-01-10 08:34:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:46,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:46,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:46,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943560838] [2022-01-10 08:34:46,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943560838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:46,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:46,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 08:34:46,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757404756] [2022-01-10 08:34:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:46,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:34:46,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:34:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:46,126 INFO L87 Difference]: Start difference. First operand 298 states and 419 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:46,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:46,476 INFO L93 Difference]: Finished difference Result 327 states and 450 transitions. [2022-01-10 08:34:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:34:46,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 08:34:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:46,477 INFO L225 Difference]: With dead ends: 327 [2022-01-10 08:34:46,477 INFO L226 Difference]: Without dead ends: 325 [2022-01-10 08:34:46,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 08:34:46,478 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 97 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:46,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 950 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 08:34:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-01-10 08:34:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 300. [2022-01-10 08:34:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 286 states have (on average 1.472027972027972) internal successors, (421), 299 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 421 transitions. [2022-01-10 08:34:46,483 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 421 transitions. Word has length 12 [2022-01-10 08:34:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:46,483 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 421 transitions. [2022-01-10 08:34:46,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 421 transitions. [2022-01-10 08:34:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 08:34:46,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:46,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:46,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 08:34:46,484 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:46,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2049109552, now seen corresponding path program 1 times [2022-01-10 08:34:46,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:46,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808645051] [2022-01-10 08:34:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:46,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:46,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:46,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:46,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808645051] [2022-01-10 08:34:46,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808645051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:46,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:46,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 08:34:46,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235108482] [2022-01-10 08:34:46,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:46,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:34:46,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:46,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:34:46,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:46,531 INFO L87 Difference]: Start difference. First operand 300 states and 421 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:47,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:47,025 INFO L93 Difference]: Finished difference Result 345 states and 470 transitions. [2022-01-10 08:34:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:47,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 08:34:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:47,026 INFO L225 Difference]: With dead ends: 345 [2022-01-10 08:34:47,026 INFO L226 Difference]: Without dead ends: 343 [2022-01-10 08:34:47,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:47,027 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 63 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:47,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 1015 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 08:34:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-01-10 08:34:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 303. [2022-01-10 08:34:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 289 states have (on average 1.4740484429065743) internal successors, (426), 302 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:47,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 426 transitions. [2022-01-10 08:34:47,032 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 426 transitions. Word has length 13 [2022-01-10 08:34:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:47,033 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 426 transitions. [2022-01-10 08:34:47,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:47,033 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 426 transitions. [2022-01-10 08:34:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 08:34:47,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:47,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:47,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 08:34:47,033 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:47,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:47,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2049141364, now seen corresponding path program 1 times [2022-01-10 08:34:47,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:47,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86520717] [2022-01-10 08:34:47,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:47,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:47,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:47,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86520717] [2022-01-10 08:34:47,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86520717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:47,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:47,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 08:34:47,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457950857] [2022-01-10 08:34:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:47,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:34:47,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:34:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:47,071 INFO L87 Difference]: Start difference. First operand 303 states and 426 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:47,525 INFO L93 Difference]: Finished difference Result 323 states and 446 transitions. [2022-01-10 08:34:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 08:34:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:47,526 INFO L225 Difference]: With dead ends: 323 [2022-01-10 08:34:47,526 INFO L226 Difference]: Without dead ends: 321 [2022-01-10 08:34:47,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:47,527 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 32 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:47,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 976 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 08:34:47,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-01-10 08:34:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 305. [2022-01-10 08:34:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 291 states have (on average 1.4742268041237114) internal successors, (429), 304 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 429 transitions. [2022-01-10 08:34:47,532 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 429 transitions. Word has length 13 [2022-01-10 08:34:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:47,532 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 429 transitions. [2022-01-10 08:34:47,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 429 transitions. [2022-01-10 08:34:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 08:34:47,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:47,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:47,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 08:34:47,533 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1264636654, now seen corresponding path program 1 times [2022-01-10 08:34:47,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:47,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604823640] [2022-01-10 08:34:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:47,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:47,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:47,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604823640] [2022-01-10 08:34:47,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604823640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:47,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:47,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:47,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922560601] [2022-01-10 08:34:47,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:47,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:47,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:47,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:47,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:47,640 INFO L87 Difference]: Start difference. First operand 305 states and 429 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:48,307 INFO L93 Difference]: Finished difference Result 321 states and 444 transitions. [2022-01-10 08:34:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:34:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 08:34:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:48,309 INFO L225 Difference]: With dead ends: 321 [2022-01-10 08:34:48,309 INFO L226 Difference]: Without dead ends: 319 [2022-01-10 08:34:48,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-01-10 08:34:48,310 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 104 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:48,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 1130 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 08:34:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-01-10 08:34:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 306. [2022-01-10 08:34:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 292 states have (on average 1.4726027397260273) internal successors, (430), 305 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 430 transitions. [2022-01-10 08:34:48,315 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 430 transitions. Word has length 13 [2022-01-10 08:34:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:48,315 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 430 transitions. [2022-01-10 08:34:48,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 430 transitions. [2022-01-10 08:34:48,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 08:34:48,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:48,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:48,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 08:34:48,316 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:48,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:48,316 INFO L85 PathProgramCache]: Analyzing trace with hash -902110870, now seen corresponding path program 1 times [2022-01-10 08:34:48,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:48,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588362783] [2022-01-10 08:34:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:48,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:48,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:48,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588362783] [2022-01-10 08:34:48,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588362783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:48,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:48,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:48,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256355698] [2022-01-10 08:34:48,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:48,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:48,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:48,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:48,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:48,529 INFO L87 Difference]: Start difference. First operand 306 states and 430 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:49,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:49,387 INFO L93 Difference]: Finished difference Result 342 states and 467 transitions. [2022-01-10 08:34:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:34:49,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-10 08:34:49,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:49,389 INFO L225 Difference]: With dead ends: 342 [2022-01-10 08:34:49,389 INFO L226 Difference]: Without dead ends: 340 [2022-01-10 08:34:49,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-10 08:34:49,389 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 85 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:49,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1230 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:34:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-01-10 08:34:49,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 307. [2022-01-10 08:34:49,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 293 states have (on average 1.47098976109215) internal successors, (431), 306 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 431 transitions. [2022-01-10 08:34:49,395 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 431 transitions. Word has length 14 [2022-01-10 08:34:49,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:49,395 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 431 transitions. [2022-01-10 08:34:49,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:49,395 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 431 transitions. [2022-01-10 08:34:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 08:34:49,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:49,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:49,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 08:34:49,396 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash -902080052, now seen corresponding path program 1 times [2022-01-10 08:34:49,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:49,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925398290] [2022-01-10 08:34:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:49,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:49,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:49,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925398290] [2022-01-10 08:34:49,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925398290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:49,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:49,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 08:34:49,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033435854] [2022-01-10 08:34:49,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:49,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:34:49,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:49,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:34:49,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:34:49,456 INFO L87 Difference]: Start difference. First operand 307 states and 431 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:49,924 INFO L93 Difference]: Finished difference Result 344 states and 469 transitions. [2022-01-10 08:34:49,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:49,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-10 08:34:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:49,925 INFO L225 Difference]: With dead ends: 344 [2022-01-10 08:34:49,925 INFO L226 Difference]: Without dead ends: 342 [2022-01-10 08:34:49,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:49,926 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 54 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:49,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 1041 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 08:34:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-01-10 08:34:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 309. [2022-01-10 08:34:49,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 295 states have (on average 1.4677966101694915) internal successors, (433), 308 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:49,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 433 transitions. [2022-01-10 08:34:49,930 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 433 transitions. Word has length 14 [2022-01-10 08:34:49,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:49,931 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 433 transitions. [2022-01-10 08:34:49,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 433 transitions. [2022-01-10 08:34:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 08:34:49,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:49,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:49,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 08:34:49,931 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:49,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash -901124690, now seen corresponding path program 1 times [2022-01-10 08:34:49,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:49,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544446528] [2022-01-10 08:34:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:49,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:50,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:50,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544446528] [2022-01-10 08:34:50,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544446528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:50,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:50,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:50,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728789652] [2022-01-10 08:34:50,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:50,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:50,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:50,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:50,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:50,172 INFO L87 Difference]: Start difference. First operand 309 states and 433 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:50,984 INFO L93 Difference]: Finished difference Result 315 states and 438 transitions. [2022-01-10 08:34:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-10 08:34:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:50,986 INFO L225 Difference]: With dead ends: 315 [2022-01-10 08:34:50,986 INFO L226 Difference]: Without dead ends: 311 [2022-01-10 08:34:50,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-10 08:34:50,988 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 43 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:50,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1248 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:34:50,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-01-10 08:34:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 308. [2022-01-10 08:34:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 294 states have (on average 1.465986394557823) internal successors, (431), 307 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:51,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 431 transitions. [2022-01-10 08:34:51,001 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 431 transitions. Word has length 14 [2022-01-10 08:34:51,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:51,001 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 431 transitions. [2022-01-10 08:34:51,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 431 transitions. [2022-01-10 08:34:51,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 08:34:51,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:51,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:51,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 08:34:51,002 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:51,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2100291932, now seen corresponding path program 1 times [2022-01-10 08:34:51,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:51,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464856891] [2022-01-10 08:34:51,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:51,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:51,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:51,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464856891] [2022-01-10 08:34:51,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464856891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:51,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:51,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:51,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062342814] [2022-01-10 08:34:51,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:51,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:51,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:51,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:51,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:51,205 INFO L87 Difference]: Start difference. First operand 308 states and 431 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:52,020 INFO L93 Difference]: Finished difference Result 341 states and 466 transitions. [2022-01-10 08:34:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:34:52,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 08:34:52,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:52,021 INFO L225 Difference]: With dead ends: 341 [2022-01-10 08:34:52,021 INFO L226 Difference]: Without dead ends: 339 [2022-01-10 08:34:52,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-10 08:34:52,022 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 73 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:52,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 1262 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:34:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-01-10 08:34:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 309. [2022-01-10 08:34:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 295 states have (on average 1.464406779661017) internal successors, (432), 308 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 432 transitions. [2022-01-10 08:34:52,028 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 432 transitions. Word has length 15 [2022-01-10 08:34:52,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:52,028 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 432 transitions. [2022-01-10 08:34:52,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:52,028 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 432 transitions. [2022-01-10 08:34:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 08:34:52,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:52,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:52,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 08:34:52,029 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:52,029 INFO L85 PathProgramCache]: Analyzing trace with hash -159843819, now seen corresponding path program 1 times [2022-01-10 08:34:52,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:52,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674862117] [2022-01-10 08:34:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:52,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:52,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:52,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674862117] [2022-01-10 08:34:52,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674862117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:52,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:52,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:52,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109590549] [2022-01-10 08:34:52,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:52,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:52,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:52,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:52,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:52,126 INFO L87 Difference]: Start difference. First operand 309 states and 432 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:52,985 INFO L93 Difference]: Finished difference Result 346 states and 470 transitions. [2022-01-10 08:34:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 08:34:52,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 08:34:52,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:52,987 INFO L225 Difference]: With dead ends: 346 [2022-01-10 08:34:52,987 INFO L226 Difference]: Without dead ends: 343 [2022-01-10 08:34:52,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:34:52,988 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 53 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:52,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 1208 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:34:52,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-01-10 08:34:52,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 310. [2022-01-10 08:34:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 296 states have (on average 1.462837837837838) internal successors, (433), 309 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 433 transitions. [2022-01-10 08:34:52,993 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 433 transitions. Word has length 15 [2022-01-10 08:34:52,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:52,993 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 433 transitions. [2022-01-10 08:34:52,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:52,993 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 433 transitions. [2022-01-10 08:34:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 08:34:52,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:52,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:52,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 08:34:52,994 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:52,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1645641723, now seen corresponding path program 1 times [2022-01-10 08:34:52,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:52,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125776316] [2022-01-10 08:34:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:52,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:53,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:53,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125776316] [2022-01-10 08:34:53,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125776316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:53,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:53,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 08:34:53,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164594423] [2022-01-10 08:34:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:53,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 08:34:53,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 08:34:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:53,147 INFO L87 Difference]: Start difference. First operand 310 states and 433 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:53,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:53,873 INFO L93 Difference]: Finished difference Result 343 states and 467 transitions. [2022-01-10 08:34:53,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:34:53,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 08:34:53,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:53,874 INFO L225 Difference]: With dead ends: 343 [2022-01-10 08:34:53,874 INFO L226 Difference]: Without dead ends: 339 [2022-01-10 08:34:53,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:34:53,875 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 47 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:53,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1128 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 08:34:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-01-10 08:34:53,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 310. [2022-01-10 08:34:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 296 states have (on average 1.4594594594594594) internal successors, (432), 309 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 432 transitions. [2022-01-10 08:34:53,881 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 432 transitions. Word has length 15 [2022-01-10 08:34:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:53,881 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 432 transitions. [2022-01-10 08:34:53,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 432 transitions. [2022-01-10 08:34:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 08:34:53,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:53,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:53,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 08:34:53,882 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:53,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:53,882 INFO L85 PathProgramCache]: Analyzing trace with hash 654925745, now seen corresponding path program 1 times [2022-01-10 08:34:53,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:53,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699552841] [2022-01-10 08:34:53,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:53,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:53,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:53,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699552841] [2022-01-10 08:34:53,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699552841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:53,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:53,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 08:34:53,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96085423] [2022-01-10 08:34:53,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:53,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 08:34:53,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:53,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 08:34:53,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 08:34:53,949 INFO L87 Difference]: Start difference. First operand 310 states and 432 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:54,607 INFO L93 Difference]: Finished difference Result 343 states and 467 transitions. [2022-01-10 08:34:54,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:34:54,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-01-10 08:34:54,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:54,609 INFO L225 Difference]: With dead ends: 343 [2022-01-10 08:34:54,609 INFO L226 Difference]: Without dead ends: 341 [2022-01-10 08:34:54,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:54,609 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 48 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:54,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 1123 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 08:34:54,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-01-10 08:34:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 312. [2022-01-10 08:34:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 298 states have (on average 1.4597315436241611) internal successors, (435), 311 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 435 transitions. [2022-01-10 08:34:54,615 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 435 transitions. Word has length 16 [2022-01-10 08:34:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:54,615 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 435 transitions. [2022-01-10 08:34:54,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 435 transitions. [2022-01-10 08:34:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 08:34:54,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:54,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:54,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 08:34:54,616 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash -521791189, now seen corresponding path program 1 times [2022-01-10 08:34:54,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:54,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480367781] [2022-01-10 08:34:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:54,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:54,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:54,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480367781] [2022-01-10 08:34:54,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480367781] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:54,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:54,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 08:34:54,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566560174] [2022-01-10 08:34:54,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:54,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 08:34:54,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 08:34:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:54,685 INFO L87 Difference]: Start difference. First operand 312 states and 435 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:55,426 INFO L93 Difference]: Finished difference Result 348 states and 472 transitions. [2022-01-10 08:34:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 08:34:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-01-10 08:34:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:55,427 INFO L225 Difference]: With dead ends: 348 [2022-01-10 08:34:55,427 INFO L226 Difference]: Without dead ends: 346 [2022-01-10 08:34:55,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:34:55,428 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 135 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:55,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1039 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 08:34:55,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-01-10 08:34:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 314. [2022-01-10 08:34:55,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 300 states have (on average 1.4566666666666668) internal successors, (437), 313 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 437 transitions. [2022-01-10 08:34:55,434 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 437 transitions. Word has length 16 [2022-01-10 08:34:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:55,434 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 437 transitions. [2022-01-10 08:34:55,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 437 transitions. [2022-01-10 08:34:55,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:34:55,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:55,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:55,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 08:34:55,435 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:55,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1172135903, now seen corresponding path program 1 times [2022-01-10 08:34:55,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:55,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272507993] [2022-01-10 08:34:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:55,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:55,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:55,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272507993] [2022-01-10 08:34:55,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272507993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:55,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:55,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:34:55,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636743780] [2022-01-10 08:34:55,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:55,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:34:55,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:55,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:34:55,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:34:55,596 INFO L87 Difference]: Start difference. First operand 314 states and 437 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:57,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:57,172 INFO L93 Difference]: Finished difference Result 321 states and 444 transitions. [2022-01-10 08:34:57,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 08:34:57,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:34:57,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:57,174 INFO L225 Difference]: With dead ends: 321 [2022-01-10 08:34:57,174 INFO L226 Difference]: Without dead ends: 317 [2022-01-10 08:34:57,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2022-01-10 08:34:57,174 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 445 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:57,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 541 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 08:34:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-01-10 08:34:57,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 310. [2022-01-10 08:34:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 297 states have (on average 1.4545454545454546) internal successors, (432), 309 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 432 transitions. [2022-01-10 08:34:57,181 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 432 transitions. Word has length 17 [2022-01-10 08:34:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:57,181 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 432 transitions. [2022-01-10 08:34:57,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 432 transitions. [2022-01-10 08:34:57,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:34:57,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:57,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:57,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 08:34:57,182 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:57,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:57,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1172135830, now seen corresponding path program 1 times [2022-01-10 08:34:57,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:57,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484493234] [2022-01-10 08:34:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:57,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:57,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:57,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484493234] [2022-01-10 08:34:57,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484493234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:57,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:57,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 08:34:57,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569015474] [2022-01-10 08:34:57,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:57,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 08:34:57,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 08:34:57,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:57,223 INFO L87 Difference]: Start difference. First operand 310 states and 432 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:58,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:58,004 INFO L93 Difference]: Finished difference Result 379 states and 507 transitions. [2022-01-10 08:34:58,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:34:58,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:34:58,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:58,005 INFO L225 Difference]: With dead ends: 379 [2022-01-10 08:34:58,005 INFO L226 Difference]: Without dead ends: 377 [2022-01-10 08:34:58,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:34:58,006 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 97 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:58,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1118 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:34:58,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-01-10 08:34:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 316. [2022-01-10 08:34:58,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 303 states have (on average 1.4587458745874586) internal successors, (442), 315 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:58,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 442 transitions. [2022-01-10 08:34:58,014 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 442 transitions. Word has length 17 [2022-01-10 08:34:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:58,014 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 442 transitions. [2022-01-10 08:34:58,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 442 transitions. [2022-01-10 08:34:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:34:58,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:58,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:58,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 08:34:58,015 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:58,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:58,015 INFO L85 PathProgramCache]: Analyzing trace with hash -254060790, now seen corresponding path program 1 times [2022-01-10 08:34:58,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:58,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5563054] [2022-01-10 08:34:58,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:58,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:58,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:58,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:58,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5563054] [2022-01-10 08:34:58,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5563054] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:34:58,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435743636] [2022-01-10 08:34:58,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:58,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:34:58,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:34:58,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 08:34:58,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 08:34:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:58,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 08:34:58,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:34:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 08:34:58,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 08:34:58,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435743636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:58,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 08:34:58,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2022-01-10 08:34:58,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95374761] [2022-01-10 08:34:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:58,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 08:34:58,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 08:34:58,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:34:58,601 INFO L87 Difference]: Start difference. First operand 316 states and 442 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:59,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:34:59,336 INFO L93 Difference]: Finished difference Result 316 states and 442 transitions. [2022-01-10 08:34:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:34:59,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:34:59,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:34:59,338 INFO L225 Difference]: With dead ends: 316 [2022-01-10 08:34:59,338 INFO L226 Difference]: Without dead ends: 313 [2022-01-10 08:34:59,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-01-10 08:34:59,338 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 436 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 08:34:59,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 715 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 08:34:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-01-10 08:34:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 312. [2022-01-10 08:34:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 300 states have (on average 1.4566666666666668) internal successors, (437), 311 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 437 transitions. [2022-01-10 08:34:59,347 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 437 transitions. Word has length 17 [2022-01-10 08:34:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:34:59,348 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 437 transitions. [2022-01-10 08:34:59,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:34:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 437 transitions. [2022-01-10 08:34:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:34:59,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:34:59,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:34:59,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 08:34:59,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-01-10 08:34:59,556 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:34:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:34:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1009944863, now seen corresponding path program 1 times [2022-01-10 08:34:59,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:34:59,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950368762] [2022-01-10 08:34:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:34:59,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:34:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:34:59,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:34:59,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:34:59,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950368762] [2022-01-10 08:34:59,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950368762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:34:59,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:34:59,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 08:34:59,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772884444] [2022-01-10 08:34:59,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:34:59,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 08:34:59,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:34:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 08:34:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:34:59,609 INFO L87 Difference]: Start difference. First operand 312 states and 437 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:00,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:00,503 INFO L93 Difference]: Finished difference Result 352 states and 478 transitions. [2022-01-10 08:35:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:35:00,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:35:00,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:00,506 INFO L225 Difference]: With dead ends: 352 [2022-01-10 08:35:00,506 INFO L226 Difference]: Without dead ends: 350 [2022-01-10 08:35:00,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 08:35:00,507 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 78 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:00,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 1080 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 08:35:00,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-01-10 08:35:00,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 313. [2022-01-10 08:35:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 301 states have (on average 1.4551495016611296) internal successors, (438), 312 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:00,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 438 transitions. [2022-01-10 08:35:00,526 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 438 transitions. Word has length 17 [2022-01-10 08:35:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:00,527 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 438 transitions. [2022-01-10 08:35:00,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 438 transitions. [2022-01-10 08:35:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:35:00,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:00,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:00,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 08:35:00,544 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:00,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1009976675, now seen corresponding path program 1 times [2022-01-10 08:35:00,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:00,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313930584] [2022-01-10 08:35:00,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:00,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:00,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:00,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313930584] [2022-01-10 08:35:00,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313930584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:00,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:00,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 08:35:00,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325194385] [2022-01-10 08:35:00,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:00,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 08:35:00,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:00,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 08:35:00,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 08:35:00,602 INFO L87 Difference]: Start difference. First operand 313 states and 438 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:01,211 INFO L93 Difference]: Finished difference Result 328 states and 452 transitions. [2022-01-10 08:35:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:35:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:35:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:01,212 INFO L225 Difference]: With dead ends: 328 [2022-01-10 08:35:01,212 INFO L226 Difference]: Without dead ends: 326 [2022-01-10 08:35:01,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-10 08:35:01,214 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 43 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:01,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1047 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 08:35:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-01-10 08:35:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 314. [2022-01-10 08:35:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 302 states have (on average 1.4536423841059603) internal successors, (439), 313 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 439 transitions. [2022-01-10 08:35:01,239 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 439 transitions. Word has length 17 [2022-01-10 08:35:01,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:01,239 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 439 transitions. [2022-01-10 08:35:01,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 439 transitions. [2022-01-10 08:35:01,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:35:01,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:01,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:01,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 08:35:01,240 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:01,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:01,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1004344740, now seen corresponding path program 1 times [2022-01-10 08:35:01,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:01,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553871363] [2022-01-10 08:35:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:01,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:01,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:01,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553871363] [2022-01-10 08:35:01,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553871363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:01,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:01,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 08:35:01,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497034763] [2022-01-10 08:35:01,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:01,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 08:35:01,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 08:35:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:35:01,468 INFO L87 Difference]: Start difference. First operand 314 states and 439 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:02,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:02,670 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2022-01-10 08:35:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 08:35:02,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:35:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:02,675 INFO L225 Difference]: With dead ends: 314 [2022-01-10 08:35:02,676 INFO L226 Difference]: Without dead ends: 312 [2022-01-10 08:35:02,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2022-01-10 08:35:02,676 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 919 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:02,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 528 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 08:35:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-01-10 08:35:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-01-10 08:35:02,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 301 states have (on average 1.451827242524917) internal successors, (437), 311 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 437 transitions. [2022-01-10 08:35:02,685 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 437 transitions. Word has length 17 [2022-01-10 08:35:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:02,685 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 437 transitions. [2022-01-10 08:35:02,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 437 transitions. [2022-01-10 08:35:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 08:35:02,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:02,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:02,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 08:35:02,686 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:02,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1976469890, now seen corresponding path program 1 times [2022-01-10 08:35:02,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:02,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893777076] [2022-01-10 08:35:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:02,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:02,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:02,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893777076] [2022-01-10 08:35:02,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893777076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:02,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:02,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 08:35:02,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793703161] [2022-01-10 08:35:02,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:02,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 08:35:02,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:02,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 08:35:02,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:35:02,861 INFO L87 Difference]: Start difference. First operand 312 states and 437 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:04,106 INFO L93 Difference]: Finished difference Result 344 states and 474 transitions. [2022-01-10 08:35:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:35:04,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 08:35:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:04,108 INFO L225 Difference]: With dead ends: 344 [2022-01-10 08:35:04,108 INFO L226 Difference]: Without dead ends: 342 [2022-01-10 08:35:04,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-01-10 08:35:04,108 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 915 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:04,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 512 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 08:35:04,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-01-10 08:35:04,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 310. [2022-01-10 08:35:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 300 states have (on average 1.45) internal successors, (435), 309 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 435 transitions. [2022-01-10 08:35:04,119 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 435 transitions. Word has length 18 [2022-01-10 08:35:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:04,120 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 435 transitions. [2022-01-10 08:35:04,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 435 transitions. [2022-01-10 08:35:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 08:35:04,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:04,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:04,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 08:35:04,120 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:04,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1243522139, now seen corresponding path program 1 times [2022-01-10 08:35:04,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:04,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227567740] [2022-01-10 08:35:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:04,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:04,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:04,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227567740] [2022-01-10 08:35:04,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227567740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:04,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:04,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:04,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289895551] [2022-01-10 08:35:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:04,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:04,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:04,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:04,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:04,257 INFO L87 Difference]: Start difference. First operand 310 states and 435 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:05,054 INFO L93 Difference]: Finished difference Result 339 states and 465 transitions. [2022-01-10 08:35:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 08:35:05,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 08:35:05,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:05,055 INFO L225 Difference]: With dead ends: 339 [2022-01-10 08:35:05,055 INFO L226 Difference]: Without dead ends: 337 [2022-01-10 08:35:05,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-01-10 08:35:05,056 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 107 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:05,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 1148 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 08:35:05,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-10 08:35:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 311. [2022-01-10 08:35:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 301 states have (on average 1.4485049833887043) internal successors, (436), 310 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 436 transitions. [2022-01-10 08:35:05,073 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 436 transitions. Word has length 18 [2022-01-10 08:35:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:05,073 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 436 transitions. [2022-01-10 08:35:05,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 436 transitions. [2022-01-10 08:35:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 08:35:05,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:05,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:05,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 08:35:05,075 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:05,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:05,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1244508319, now seen corresponding path program 1 times [2022-01-10 08:35:05,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:05,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951859718] [2022-01-10 08:35:05,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:05,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:05,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:05,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951859718] [2022-01-10 08:35:05,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951859718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:05,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:05,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:05,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013912280] [2022-01-10 08:35:05,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:05,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:05,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:05,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:05,229 INFO L87 Difference]: Start difference. First operand 311 states and 436 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:06,091 INFO L93 Difference]: Finished difference Result 316 states and 440 transitions. [2022-01-10 08:35:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:35:06,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 08:35:06,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:06,093 INFO L225 Difference]: With dead ends: 316 [2022-01-10 08:35:06,093 INFO L226 Difference]: Without dead ends: 312 [2022-01-10 08:35:06,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-01-10 08:35:06,097 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 78 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:06,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 1096 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:35:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-01-10 08:35:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2022-01-10 08:35:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 300 states have (on average 1.4466666666666668) internal successors, (434), 309 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 434 transitions. [2022-01-10 08:35:06,106 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 434 transitions. Word has length 18 [2022-01-10 08:35:06,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:06,106 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 434 transitions. [2022-01-10 08:35:06,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 434 transitions. [2022-01-10 08:35:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 08:35:06,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:06,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:06,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 08:35:06,107 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:06,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:06,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1881358825, now seen corresponding path program 1 times [2022-01-10 08:35:06,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:06,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022105522] [2022-01-10 08:35:06,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:06,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:06,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:06,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022105522] [2022-01-10 08:35:06,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022105522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:06,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:06,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 08:35:06,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545992416] [2022-01-10 08:35:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:06,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 08:35:06,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:06,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 08:35:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:35:06,229 INFO L87 Difference]: Start difference. First operand 310 states and 434 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:07,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:07,459 INFO L93 Difference]: Finished difference Result 321 states and 444 transitions. [2022-01-10 08:35:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:35:07,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 08:35:07,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:07,460 INFO L225 Difference]: With dead ends: 321 [2022-01-10 08:35:07,460 INFO L226 Difference]: Without dead ends: 317 [2022-01-10 08:35:07,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-01-10 08:35:07,461 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 166 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:07,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1186 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 08:35:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-01-10 08:35:07,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 310. [2022-01-10 08:35:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 300 states have (on average 1.4433333333333334) internal successors, (433), 309 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 433 transitions. [2022-01-10 08:35:07,479 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 433 transitions. Word has length 19 [2022-01-10 08:35:07,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:07,479 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 433 transitions. [2022-01-10 08:35:07,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:07,479 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 433 transitions. [2022-01-10 08:35:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 08:35:07,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:07,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:07,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 08:35:07,479 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:07,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1023945314, now seen corresponding path program 1 times [2022-01-10 08:35:07,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:07,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186825358] [2022-01-10 08:35:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:07,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:07,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:07,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186825358] [2022-01-10 08:35:07,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186825358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:07,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:07,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:07,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056880280] [2022-01-10 08:35:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:07,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:07,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:07,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:07,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:07,632 INFO L87 Difference]: Start difference. First operand 310 states and 433 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:09,287 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2022-01-10 08:35:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 08:35:09,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 08:35:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:09,288 INFO L225 Difference]: With dead ends: 317 [2022-01-10 08:35:09,288 INFO L226 Difference]: Without dead ends: 314 [2022-01-10 08:35:09,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-01-10 08:35:09,289 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 129 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:09,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 1162 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 08:35:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-01-10 08:35:09,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 307. [2022-01-10 08:35:09,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 298 states have (on average 1.4429530201342282) internal successors, (430), 306 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:09,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 430 transitions. [2022-01-10 08:35:09,299 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 430 transitions. Word has length 20 [2022-01-10 08:35:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:09,299 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 430 transitions. [2022-01-10 08:35:09,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:09,299 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 430 transitions. [2022-01-10 08:35:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 08:35:09,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:09,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:09,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 08:35:09,300 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:09,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1803661471, now seen corresponding path program 1 times [2022-01-10 08:35:09,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:09,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481345540] [2022-01-10 08:35:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:09,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:09,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:09,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481345540] [2022-01-10 08:35:09,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481345540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:09,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:09,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:09,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605294129] [2022-01-10 08:35:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:09,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:09,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:09,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:09,406 INFO L87 Difference]: Start difference. First operand 307 states and 430 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:10,541 INFO L93 Difference]: Finished difference Result 336 states and 461 transitions. [2022-01-10 08:35:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 08:35:10,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 08:35:10,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:10,542 INFO L225 Difference]: With dead ends: 336 [2022-01-10 08:35:10,542 INFO L226 Difference]: Without dead ends: 334 [2022-01-10 08:35:10,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-01-10 08:35:10,544 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 187 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:10,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1157 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 08:35:10,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-01-10 08:35:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 307. [2022-01-10 08:35:10,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 298 states have (on average 1.4429530201342282) internal successors, (430), 306 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 430 transitions. [2022-01-10 08:35:10,569 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 430 transitions. Word has length 20 [2022-01-10 08:35:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:10,569 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 430 transitions. [2022-01-10 08:35:10,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 430 transitions. [2022-01-10 08:35:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 08:35:10,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:10,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:10,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 08:35:10,570 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:10,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1677536217, now seen corresponding path program 1 times [2022-01-10 08:35:10,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:10,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168501176] [2022-01-10 08:35:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:10,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:10,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:10,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168501176] [2022-01-10 08:35:10,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168501176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:10,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:10,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:10,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733040508] [2022-01-10 08:35:10,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:10,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:10,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:10,725 INFO L87 Difference]: Start difference. First operand 307 states and 430 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:12,055 INFO L93 Difference]: Finished difference Result 377 states and 508 transitions. [2022-01-10 08:35:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 08:35:12,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 08:35:12,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:12,057 INFO L225 Difference]: With dead ends: 377 [2022-01-10 08:35:12,057 INFO L226 Difference]: Without dead ends: 375 [2022-01-10 08:35:12,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-01-10 08:35:12,057 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 147 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:12,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 1245 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 08:35:12,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-01-10 08:35:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 318. [2022-01-10 08:35:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 309 states have (on average 1.4368932038834952) internal successors, (444), 317 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:12,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 444 transitions. [2022-01-10 08:35:12,068 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 444 transitions. Word has length 21 [2022-01-10 08:35:12,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:12,068 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 444 transitions. [2022-01-10 08:35:12,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 444 transitions. [2022-01-10 08:35:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 08:35:12,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:12,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:12,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 08:35:12,068 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash 985825493, now seen corresponding path program 1 times [2022-01-10 08:35:12,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:12,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727680591] [2022-01-10 08:35:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:12,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:12,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:12,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727680591] [2022-01-10 08:35:12,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727680591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:12,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:12,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:12,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922767280] [2022-01-10 08:35:12,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:12,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:12,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:12,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:12,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:12,159 INFO L87 Difference]: Start difference. First operand 318 states and 444 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:13,051 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2022-01-10 08:35:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 08:35:13,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 08:35:13,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:13,056 INFO L225 Difference]: With dead ends: 363 [2022-01-10 08:35:13,056 INFO L226 Difference]: Without dead ends: 361 [2022-01-10 08:35:13,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-10 08:35:13,060 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 164 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:13,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1222 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:35:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-01-10 08:35:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 319. [2022-01-10 08:35:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 310 states have (on average 1.435483870967742) internal successors, (445), 318 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 445 transitions. [2022-01-10 08:35:13,071 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 445 transitions. Word has length 21 [2022-01-10 08:35:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:13,071 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 445 transitions. [2022-01-10 08:35:13,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 445 transitions. [2022-01-10 08:35:13,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 08:35:13,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:13,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:13,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 08:35:13,072 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:13,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash 985857305, now seen corresponding path program 1 times [2022-01-10 08:35:13,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:13,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312760839] [2022-01-10 08:35:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:13,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:13,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:13,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312760839] [2022-01-10 08:35:13,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312760839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:13,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:13,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 08:35:13,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751771012] [2022-01-10 08:35:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:13,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 08:35:13,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 08:35:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 08:35:13,167 INFO L87 Difference]: Start difference. First operand 319 states and 445 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:13,998 INFO L93 Difference]: Finished difference Result 330 states and 455 transitions. [2022-01-10 08:35:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:35:13,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 08:35:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:13,999 INFO L225 Difference]: With dead ends: 330 [2022-01-10 08:35:13,999 INFO L226 Difference]: Without dead ends: 328 [2022-01-10 08:35:14,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-01-10 08:35:14,000 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 151 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:14,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 1091 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 08:35:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-01-10 08:35:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2022-01-10 08:35:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 311 states have (on average 1.4340836012861737) internal successors, (446), 319 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 446 transitions. [2022-01-10 08:35:14,011 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 446 transitions. Word has length 21 [2022-01-10 08:35:14,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:14,011 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 446 transitions. [2022-01-10 08:35:14,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:14,011 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 446 transitions. [2022-01-10 08:35:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 08:35:14,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:14,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:14,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 08:35:14,011 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:14,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:14,012 INFO L85 PathProgramCache]: Analyzing trace with hash 495821669, now seen corresponding path program 1 times [2022-01-10 08:35:14,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:14,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523512809] [2022-01-10 08:35:14,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:14,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:14,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:14,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523512809] [2022-01-10 08:35:14,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523512809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:14,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:14,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 08:35:14,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365067256] [2022-01-10 08:35:14,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:14,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 08:35:14,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:14,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 08:35:14,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:35:14,447 INFO L87 Difference]: Start difference. First operand 320 states and 446 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:17,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:17,801 INFO L93 Difference]: Finished difference Result 397 states and 535 transitions. [2022-01-10 08:35:17,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 08:35:17,802 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-10 08:35:17,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:17,803 INFO L225 Difference]: With dead ends: 397 [2022-01-10 08:35:17,803 INFO L226 Difference]: Without dead ends: 395 [2022-01-10 08:35:17,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2022-01-10 08:35:17,803 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 142 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:17,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1497 Invalid, 2421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-10 08:35:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-01-10 08:35:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 337. [2022-01-10 08:35:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 328 states have (on average 1.4359756097560976) internal successors, (471), 336 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 471 transitions. [2022-01-10 08:35:17,830 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 471 transitions. Word has length 22 [2022-01-10 08:35:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:17,830 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 471 transitions. [2022-01-10 08:35:17,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:17,830 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 471 transitions. [2022-01-10 08:35:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 08:35:17,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:17,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:17,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 08:35:17,830 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 496807849, now seen corresponding path program 1 times [2022-01-10 08:35:17,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:17,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493926344] [2022-01-10 08:35:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:17,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:18,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:18,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493926344] [2022-01-10 08:35:18,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493926344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:35:18,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:35:18,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 08:35:18,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135973688] [2022-01-10 08:35:18,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:35:18,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 08:35:18,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:35:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 08:35:18,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-10 08:35:18,290 INFO L87 Difference]: Start difference. First operand 337 states and 471 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:35:21,540 INFO L93 Difference]: Finished difference Result 348 states and 479 transitions. [2022-01-10 08:35:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 08:35:21,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-10 08:35:21,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:35:21,541 INFO L225 Difference]: With dead ends: 348 [2022-01-10 08:35:21,541 INFO L226 Difference]: Without dead ends: 344 [2022-01-10 08:35:21,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-01-10 08:35:21,542 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 97 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:35:21,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1390 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-10 08:35:21,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-01-10 08:35:21,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 338. [2022-01-10 08:35:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 329 states have (on average 1.43161094224924) internal successors, (471), 337 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 471 transitions. [2022-01-10 08:35:21,556 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 471 transitions. Word has length 22 [2022-01-10 08:35:21,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:35:21,557 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 471 transitions. [2022-01-10 08:35:21,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:35:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 471 transitions. [2022-01-10 08:35:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 08:35:21,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:35:21,557 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:35:21,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 08:35:21,557 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 08:35:21,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:35:21,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2018410652, now seen corresponding path program 1 times [2022-01-10 08:35:21,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:35:21,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970117010] [2022-01-10 08:35:21,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:21,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:35:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:21,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:35:21,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:35:21,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970117010] [2022-01-10 08:35:21,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970117010] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:35:21,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690813446] [2022-01-10 08:35:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:35:21,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:35:21,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:35:21,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 08:35:21,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 08:35:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:35:22,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 36 conjunts are in the unsatisfiable core [2022-01-10 08:35:22,138 INFO L286 TraceCheckSpWp]: Computing forward predicates...