/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-15 23:25:40,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 23:25:40,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 23:25:40,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-15 23:25:40,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-15 23:25:40,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-15 23:25:40,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-15 23:25:40,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-15 23:25:40,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-15 23:25:40,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-15 23:25:40,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-15 23:25:40,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-15 23:25:40,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-15 23:25:40,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-15 23:25:40,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-15 23:25:40,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-15 23:25:40,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-15 23:25:40,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-15 23:25:40,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-15 23:25:40,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-15 23:25:40,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-15 23:25:40,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-15 23:25:40,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-15 23:25:40,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-15 23:25:40,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-15 23:25:40,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-15 23:25:40,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-15 23:25:40,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-15 23:25:40,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-15 23:25:40,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-15 23:25:40,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-15 23:25:40,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-15 23:25:40,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-15 23:25:40,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 23:25:40,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 23:25:40,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 23:25:40,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-04-15 23:25:40,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 23:25:40,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 23:25:40,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 23:25:40,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 23:25:40,343 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 23:25:40,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 23:25:40,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 23:25:40,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 23:25:40,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 23:25:40,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 23:25:40,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 23:25:40,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 23:25:40,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 23:25:40,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 23:25:40,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-15 23:25:40,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 23:25:40,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 23:25:40,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 23:25:40,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 23:25:40,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 23:25:40,620 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 23:25:40,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2021-04-15 23:25:40,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/900df0640/b8c9d0f369fc40eb8c4f5450fe98b040/FLAGe1ece59b7 [2021-04-15 23:25:41,090 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 23:25:41,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2021-04-15 23:25:41,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/900df0640/b8c9d0f369fc40eb8c4f5450fe98b040/FLAGe1ece59b7 [2021-04-15 23:25:41,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/900df0640/b8c9d0f369fc40eb8c4f5450fe98b040 [2021-04-15 23:25:41,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 23:25:41,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-15 23:25:41,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 23:25:41,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 23:25:41,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 23:25:41,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e33c505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41, skipping insertion in model container [2021-04-15 23:25:41,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 23:25:41,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 23:25:41,304 WARN L226 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+lhb-reducer.c[919,932] [2021-04-15 23:25:41,308 WARN L226 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+lhb-reducer.c[1134,1147] [2021-04-15 23:25:41,324 WARN L226 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+lhb-reducer.c[2208,2221] [2021-04-15 23:25:41,326 WARN L226 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+lhb-reducer.c[2423,2436] [2021-04-15 23:25:41,341 WARN L226 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+lhb-reducer.c[2918,2931] [2021-04-15 23:25:41,342 WARN L226 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+lhb-reducer.c[3133,3146] [2021-04-15 23:25:41,343 WARN L226 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+lhb-reducer.c[3435,3448] [2021-04-15 23:25:41,344 WARN L226 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+lhb-reducer.c[3653,3666] [2021-04-15 23:25:41,345 WARN L226 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+lhb-reducer.c[3929,3942] [2021-04-15 23:25:41,345 WARN L226 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+lhb-reducer.c[4147,4160] [2021-04-15 23:25:41,347 WARN L226 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+lhb-reducer.c[4717,4730] [2021-04-15 23:25:41,348 WARN L226 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+lhb-reducer.c[4935,4948] [2021-04-15 23:25:41,371 WARN L226 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+lhb-reducer.c[15828,15841] [2021-04-15 23:25:41,372 WARN L226 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+lhb-reducer.c[16046,16059] [2021-04-15 23:25:41,374 WARN L226 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+lhb-reducer.c[16441,16454] [2021-04-15 23:25:41,375 WARN L226 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+lhb-reducer.c[16659,16672] [2021-04-15 23:25:41,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 23:25:41,388 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 23:25:41,396 WARN L226 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+lhb-reducer.c[919,932] [2021-04-15 23:25:41,397 WARN L226 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+lhb-reducer.c[1134,1147] [2021-04-15 23:25:41,412 WARN L226 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+lhb-reducer.c[2208,2221] [2021-04-15 23:25:41,413 WARN L226 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+lhb-reducer.c[2423,2436] [2021-04-15 23:25:41,413 WARN L226 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+lhb-reducer.c[2918,2931] [2021-04-15 23:25:41,414 WARN L226 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+lhb-reducer.c[3133,3146] [2021-04-15 23:25:41,415 WARN L226 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+lhb-reducer.c[3435,3448] [2021-04-15 23:25:41,415 WARN L226 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+lhb-reducer.c[3653,3666] [2021-04-15 23:25:41,416 WARN L226 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+lhb-reducer.c[3929,3942] [2021-04-15 23:25:41,417 WARN L226 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+lhb-reducer.c[4147,4160] [2021-04-15 23:25:41,418 WARN L226 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+lhb-reducer.c[4717,4730] [2021-04-15 23:25:41,418 WARN L226 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+lhb-reducer.c[4935,4948] [2021-04-15 23:25:41,434 WARN L226 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+lhb-reducer.c[15828,15841] [2021-04-15 23:25:41,435 WARN L226 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+lhb-reducer.c[16046,16059] [2021-04-15 23:25:41,436 WARN L226 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+lhb-reducer.c[16441,16454] [2021-04-15 23:25:41,437 WARN L226 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+lhb-reducer.c[16659,16672] [2021-04-15 23:25:41,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 23:25:41,447 INFO L208 MainTranslator]: Completed translation [2021-04-15 23:25:41,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41 WrapperNode [2021-04-15 23:25:41,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 23:25:41,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 23:25:41,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 23:25:41,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 23:25:41,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... [2021-04-15 23:25:41,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 23:25:41,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 23:25:41,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 23:25:41,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 23:25:41,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 23:25:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-15 23:25:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 23:25:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-15 23:25:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-15 23:25:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-15 23:25:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-15 23:25:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-15 23:25:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-15 23:25:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 23:25:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-15 23:25:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-15 23:25:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 23:25:42,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 23:25:42,034 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-15 23:25:42,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:25:42 BoogieIcfgContainer [2021-04-15 23:25:42,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 23:25:42,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 23:25:42,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 23:25:42,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 23:25:42,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 11:25:41" (1/3) ... [2021-04-15 23:25:42,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261ff993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:25:42, skipping insertion in model container [2021-04-15 23:25:42,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:25:41" (2/3) ... [2021-04-15 23:25:42,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261ff993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:25:42, skipping insertion in model container [2021-04-15 23:25:42,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:25:42" (3/3) ... [2021-04-15 23:25:42,042 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2021-04-15 23:25:42,046 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 23:25:42,049 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2021-04-15 23:25:42,059 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-04-15 23:25:42,083 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 23:25:42,083 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 23:25:42,083 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 23:25:42,083 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 23:25:42,083 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 23:25:42,084 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 23:25:42,084 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 23:25:42,084 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 23:25:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 104 states have (on average 1.9038461538461537) internal successors, (198), 120 states have internal predecessors, (198), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-15 23:25:42,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-15 23:25:42,112 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:42,112 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:42,112 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:42,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1600664684, now seen corresponding path program 1 times [2021-04-15 23:25:42,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:42,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149320711] [2021-04-15 23:25:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:42,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:42,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-04-15 23:25:42,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:42,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:42,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:42,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:42,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:42,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149320711] [2021-04-15 23:25:42,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:42,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 23:25:42,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384276755] [2021-04-15 23:25:42,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-15 23:25:42,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:42,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-15 23:25:42,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-15 23:25:42,375 INFO L87 Difference]: Start difference. First operand has 125 states, 104 states have (on average 1.9038461538461537) internal successors, (198), 120 states have internal predecessors, (198), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:42,882 INFO L93 Difference]: Finished difference Result 143 states and 221 transitions. [2021-04-15 23:25:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:25:42,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-04-15 23:25:42,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:42,889 INFO L225 Difference]: With dead ends: 143 [2021-04-15 23:25:42,889 INFO L226 Difference]: Without dead ends: 123 [2021-04-15 23:25:42,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 182.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-04-15 23:25:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-04-15 23:25:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 118. [2021-04-15 23:25:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 100 states have (on average 1.36) internal successors, (136), 114 states have internal predecessors, (136), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2021-04-15 23:25:42,916 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 11 [2021-04-15 23:25:42,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:42,916 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 139 transitions. [2021-04-15 23:25:42,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:42,917 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2021-04-15 23:25:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-15 23:25:42,917 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:42,917 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:42,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 23:25:42,917 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:42,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:42,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1919005414, now seen corresponding path program 1 times [2021-04-15 23:25:42,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:42,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853665764] [2021-04-15 23:25:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:42,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:42,944 INFO L142 QuantifierPusher]: treesize reduction 17, result has 29.2 percent of original size [2021-04-15 23:25:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:25:42,949 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-15 23:25:42,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-15 23:25:42,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:42,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:42,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:42,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:42,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:42,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853665764] [2021-04-15 23:25:42,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:42,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 23:25:42,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007093775] [2021-04-15 23:25:42,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 23:25:42,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:42,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 23:25:42,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-15 23:25:42,996 INFO L87 Difference]: Start difference. First operand 118 states and 139 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:43,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:43,326 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2021-04-15 23:25:43,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:25:43,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-04-15 23:25:43,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:43,331 INFO L225 Difference]: With dead ends: 121 [2021-04-15 23:25:43,331 INFO L226 Difference]: Without dead ends: 113 [2021-04-15 23:25:43,332 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 108.3ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-04-15 23:25:43,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-04-15 23:25:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-04-15 23:25:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 109 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2021-04-15 23:25:43,354 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 12 [2021-04-15 23:25:43,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:43,354 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2021-04-15 23:25:43,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2021-04-15 23:25:43,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-04-15 23:25:43,354 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:43,354 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:43,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 23:25:43,355 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:43,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:43,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1908131676, now seen corresponding path program 1 times [2021-04-15 23:25:43,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:43,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472605942] [2021-04-15 23:25:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:43,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:43,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:43,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:43,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:43,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:43,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472605942] [2021-04-15 23:25:43,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:43,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 23:25:43,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909474909] [2021-04-15 23:25:43,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 23:25:43,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:43,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 23:25:43,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 23:25:43,508 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:43,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:43,841 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2021-04-15 23:25:43,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:25:43,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-04-15 23:25:43,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:43,846 INFO L225 Difference]: With dead ends: 113 [2021-04-15 23:25:43,846 INFO L226 Difference]: Without dead ends: 111 [2021-04-15 23:25:43,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 172.8ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-15 23:25:43,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-04-15 23:25:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-04-15 23:25:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.263157894736842) internal successors, (120), 107 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2021-04-15 23:25:43,858 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 15 [2021-04-15 23:25:43,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:43,858 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2021-04-15 23:25:43,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2021-04-15 23:25:43,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-04-15 23:25:43,859 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:43,859 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:43,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 23:25:43,859 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:43,859 INFO L82 PathProgramCache]: Analyzing trace with hash -977457091, now seen corresponding path program 1 times [2021-04-15 23:25:43,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:43,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002758967] [2021-04-15 23:25:43,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:43,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:43,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:43,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:43,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:43,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:43,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002758967] [2021-04-15 23:25:43,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:43,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 23:25:43,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089927176] [2021-04-15 23:25:43,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-15 23:25:43,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:43,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-15 23:25:43,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-15 23:25:43,935 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:44,153 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2021-04-15 23:25:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 23:25:44,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-04-15 23:25:44,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:44,162 INFO L225 Difference]: With dead ends: 111 [2021-04-15 23:25:44,162 INFO L226 Difference]: Without dead ends: 107 [2021-04-15 23:25:44,162 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 55.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:44,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-04-15 23:25:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-04-15 23:25:44,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 92 states have (on average 1.2608695652173914) internal successors, (116), 103 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2021-04-15 23:25:44,174 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 16 [2021-04-15 23:25:44,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:44,174 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2021-04-15 23:25:44,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2021-04-15 23:25:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-15 23:25:44,175 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:44,175 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:44,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 23:25:44,175 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash -223130707, now seen corresponding path program 1 times [2021-04-15 23:25:44,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:44,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045054874] [2021-04-15 23:25:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:44,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:44,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:44,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:44,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:44,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:44,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:44,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:44,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045054874] [2021-04-15 23:25:44,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:44,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 23:25:44,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052166368] [2021-04-15 23:25:44,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 23:25:44,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:44,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 23:25:44,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 23:25:44,313 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:44,586 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2021-04-15 23:25:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:25:44,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-04-15 23:25:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:44,587 INFO L225 Difference]: With dead ends: 125 [2021-04-15 23:25:44,587 INFO L226 Difference]: Without dead ends: 123 [2021-04-15 23:25:44,587 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-15 23:25:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-04-15 23:25:44,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 105. [2021-04-15 23:25:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 101 states have internal predecessors, (114), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2021-04-15 23:25:44,601 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 17 [2021-04-15 23:25:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:44,601 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2021-04-15 23:25:44,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2021-04-15 23:25:44,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-15 23:25:44,602 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:44,603 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:44,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 23:25:44,604 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:44,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:44,604 INFO L82 PathProgramCache]: Analyzing trace with hash -221591507, now seen corresponding path program 1 times [2021-04-15 23:25:44,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:44,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597373895] [2021-04-15 23:25:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:44,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:44,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:44,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:44,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:44,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:44,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:44,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:44,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597373895] [2021-04-15 23:25:44,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:44,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 23:25:44,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562073724] [2021-04-15 23:25:44,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 23:25:44,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:44,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 23:25:44,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 23:25:44,707 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:45,035 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2021-04-15 23:25:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:25:45,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-04-15 23:25:45,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:45,036 INFO L225 Difference]: With dead ends: 105 [2021-04-15 23:25:45,036 INFO L226 Difference]: Without dead ends: 103 [2021-04-15 23:25:45,037 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 151.8ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-15 23:25:45,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-04-15 23:25:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-04-15 23:25:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 99 states have internal predecessors, (112), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2021-04-15 23:25:45,044 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 17 [2021-04-15 23:25:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:45,044 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2021-04-15 23:25:45,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2021-04-15 23:25:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-04-15 23:25:45,045 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:45,045 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:45,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-15 23:25:45,046 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:45,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1674251212, now seen corresponding path program 1 times [2021-04-15 23:25:45,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:45,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233746546] [2021-04-15 23:25:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:45,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:45,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:45,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:45,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:45,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:45,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233746546] [2021-04-15 23:25:45,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:45,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 23:25:45,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235319557] [2021-04-15 23:25:45,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 23:25:45,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:45,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 23:25:45,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 23:25:45,137 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:45,440 INFO L93 Difference]: Finished difference Result 124 states and 138 transitions. [2021-04-15 23:25:45,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:25:45,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-04-15 23:25:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:45,441 INFO L225 Difference]: With dead ends: 124 [2021-04-15 23:25:45,441 INFO L226 Difference]: Without dead ends: 122 [2021-04-15 23:25:45,441 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 95.8ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-15 23:25:45,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-04-15 23:25:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 101. [2021-04-15 23:25:45,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 97 states have internal predecessors, (110), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2021-04-15 23:25:45,443 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 18 [2021-04-15 23:25:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:45,444 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2021-04-15 23:25:45,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2021-04-15 23:25:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-04-15 23:25:45,444 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:45,444 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:45,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-15 23:25:45,444 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:45,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1672885792, now seen corresponding path program 1 times [2021-04-15 23:25:45,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:45,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083019558] [2021-04-15 23:25:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:45,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,475 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-04-15 23:25:45,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:25:45,483 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.0 percent of original size [2021-04-15 23:25:45,483 INFO L147 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size 13 [2021-04-15 23:25:45,495 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size [2021-04-15 23:25:45,496 INFO L147 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size 17 [2021-04-15 23:25:45,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:45,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:45,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:45,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083019558] [2021-04-15 23:25:45,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:45,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:25:45,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341978527] [2021-04-15 23:25:45,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:25:45,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:45,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:25:45,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:45,554 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:45,862 INFO L93 Difference]: Finished difference Result 134 states and 150 transitions. [2021-04-15 23:25:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 23:25:45,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-04-15 23:25:45,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:45,863 INFO L225 Difference]: With dead ends: 134 [2021-04-15 23:25:45,863 INFO L226 Difference]: Without dead ends: 132 [2021-04-15 23:25:45,864 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 155.4ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-04-15 23:25:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-04-15 23:25:45,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2021-04-15 23:25:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 103 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2021-04-15 23:25:45,869 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 18 [2021-04-15 23:25:45,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:45,869 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2021-04-15 23:25:45,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2021-04-15 23:25:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-04-15 23:25:45,872 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:45,873 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:45,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-15 23:25:45,873 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:45,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:45,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1720601042, now seen corresponding path program 1 times [2021-04-15 23:25:45,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:45,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271610009] [2021-04-15 23:25:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:45,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,916 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-04-15 23:25:45,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:25:45,925 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.0 percent of original size [2021-04-15 23:25:45,926 INFO L147 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size 13 [2021-04-15 23:25:45,939 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size [2021-04-15 23:25:45,940 INFO L147 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size 17 [2021-04-15 23:25:45,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:45,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:45,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:45,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271610009] [2021-04-15 23:25:45,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:45,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:25:45,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354773853] [2021-04-15 23:25:45,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:25:45,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:45,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:25:45,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:45,995 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:46,262 INFO L93 Difference]: Finished difference Result 117 states and 131 transitions. [2021-04-15 23:25:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 23:25:46,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-04-15 23:25:46,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:46,264 INFO L225 Difference]: With dead ends: 117 [2021-04-15 23:25:46,264 INFO L226 Difference]: Without dead ends: 113 [2021-04-15 23:25:46,265 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 161.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-04-15 23:25:46,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-04-15 23:25:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2021-04-15 23:25:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 104 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2021-04-15 23:25:46,267 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 18 [2021-04-15 23:25:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:46,267 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2021-04-15 23:25:46,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2021-04-15 23:25:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-04-15 23:25:46,268 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:46,268 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:46,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-15 23:25:46,268 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:46,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:46,269 INFO L82 PathProgramCache]: Analyzing trace with hash 362183168, now seen corresponding path program 1 times [2021-04-15 23:25:46,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:46,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008117637] [2021-04-15 23:25:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:46,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,301 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-04-15 23:25:46,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:25:46,311 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.0 percent of original size [2021-04-15 23:25:46,312 INFO L147 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size 13 [2021-04-15 23:25:46,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size [2021-04-15 23:25:46,326 INFO L147 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size 17 [2021-04-15 23:25:46,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:46,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:46,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:46,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008117637] [2021-04-15 23:25:46,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:46,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:25:46,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757859197] [2021-04-15 23:25:46,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:25:46,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:46,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:25:46,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:46,375 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:46,706 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2021-04-15 23:25:46,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 23:25:46,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-04-15 23:25:46,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:46,707 INFO L225 Difference]: With dead ends: 135 [2021-04-15 23:25:46,707 INFO L226 Difference]: Without dead ends: 133 [2021-04-15 23:25:46,707 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 143.8ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-04-15 23:25:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-04-15 23:25:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2021-04-15 23:25:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 107 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2021-04-15 23:25:46,710 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 19 [2021-04-15 23:25:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:46,710 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-04-15 23:25:46,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2021-04-15 23:25:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 23:25:46,710 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:46,710 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:46,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-15 23:25:46,711 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:46,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:46,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1325574371, now seen corresponding path program 1 times [2021-04-15 23:25:46,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:46,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057049951] [2021-04-15 23:25:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:46,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:46,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:46,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:46,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:46,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:46,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057049951] [2021-04-15 23:25:46,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:46,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 23:25:46,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639105277] [2021-04-15 23:25:46,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-15 23:25:46,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:46,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-15 23:25:46,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-15 23:25:46,766 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:46,919 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2021-04-15 23:25:46,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 23:25:46,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-04-15 23:25:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:46,921 INFO L225 Difference]: With dead ends: 111 [2021-04-15 23:25:46,921 INFO L226 Difference]: Without dead ends: 109 [2021-04-15 23:25:46,921 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-04-15 23:25:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-04-15 23:25:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 105 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2021-04-15 23:25:46,926 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 20 [2021-04-15 23:25:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:46,926 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2021-04-15 23:25:46,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2021-04-15 23:25:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-04-15 23:25:46,926 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:46,926 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:46,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-15 23:25:46,926 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:46,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:46,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1856864327, now seen corresponding path program 1 times [2021-04-15 23:25:46,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:46,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333865781] [2021-04-15 23:25:46,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:46,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:46,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:46,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:47,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:47,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333865781] [2021-04-15 23:25:47,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:47,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 23:25:47,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616480287] [2021-04-15 23:25:47,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-15 23:25:47,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:47,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-15 23:25:47,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-15 23:25:47,002 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:47,178 INFO L93 Difference]: Finished difference Result 109 states and 123 transitions. [2021-04-15 23:25:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 23:25:47,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-04-15 23:25:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:47,180 INFO L225 Difference]: With dead ends: 109 [2021-04-15 23:25:47,180 INFO L226 Difference]: Without dead ends: 105 [2021-04-15 23:25:47,180 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 56.2ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-04-15 23:25:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-04-15 23:25:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2021-04-15 23:25:47,183 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 21 [2021-04-15 23:25:47,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:47,183 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2021-04-15 23:25:47,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:47,184 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2021-04-15 23:25:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-15 23:25:47,184 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:47,184 INFO L519 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] [2021-04-15 23:25:47,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-15 23:25:47,184 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:47,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1714979017, now seen corresponding path program 1 times [2021-04-15 23:25:47,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:47,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260316067] [2021-04-15 23:25:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:47,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,227 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-04-15 23:25:47,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:47,230 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-15 23:25:47,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-15 23:25:47,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:47,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:47,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:47,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:47,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260316067] [2021-04-15 23:25:47,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:47,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:25:47,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847471275] [2021-04-15 23:25:47,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:25:47,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:47,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:25:47,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:47,278 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:47,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:47,617 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2021-04-15 23:25:47,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 23:25:47,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-04-15 23:25:47,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:47,618 INFO L225 Difference]: With dead ends: 121 [2021-04-15 23:25:47,618 INFO L226 Difference]: Without dead ends: 119 [2021-04-15 23:25:47,618 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 147.5ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-04-15 23:25:47,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-04-15 23:25:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 100. [2021-04-15 23:25:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 96 states have internal predecessors, (111), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:47,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2021-04-15 23:25:47,621 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 22 [2021-04-15 23:25:47,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:47,621 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2021-04-15 23:25:47,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:47,621 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2021-04-15 23:25:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-15 23:25:47,621 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:47,621 INFO L519 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] [2021-04-15 23:25:47,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-15 23:25:47,622 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:47,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:47,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1738536758, now seen corresponding path program 1 times [2021-04-15 23:25:47,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:47,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792467711] [2021-04-15 23:25:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:47,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,637 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-04-15 23:25:47,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:47,640 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-15 23:25:47,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-15 23:25:47,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:47,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:47,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:47,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:47,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:47,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792467711] [2021-04-15 23:25:47,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:47,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:25:47,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475486607] [2021-04-15 23:25:47,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:25:47,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:47,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:25:47,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:47,691 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:48,028 INFO L93 Difference]: Finished difference Result 113 states and 129 transitions. [2021-04-15 23:25:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 23:25:48,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-04-15 23:25:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:48,029 INFO L225 Difference]: With dead ends: 113 [2021-04-15 23:25:48,029 INFO L226 Difference]: Without dead ends: 111 [2021-04-15 23:25:48,030 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 164.7ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-04-15 23:25:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-04-15 23:25:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 95. [2021-04-15 23:25:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 87 states have (on average 1.206896551724138) internal successors, (105), 91 states have internal predecessors, (105), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-04-15 23:25:48,033 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 22 [2021-04-15 23:25:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:48,033 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-04-15 23:25:48,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-04-15 23:25:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-15 23:25:48,035 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:48,035 INFO L519 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] [2021-04-15 23:25:48,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-15 23:25:48,035 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:48,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:48,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1786252008, now seen corresponding path program 1 times [2021-04-15 23:25:48,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:48,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230770854] [2021-04-15 23:25:48,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:48,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:48,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-04-15 23:25:48,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:48,059 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-15 23:25:48,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-15 23:25:48,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:48,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:48,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:48,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230770854] [2021-04-15 23:25:48,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:48,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:25:48,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436834676] [2021-04-15 23:25:48,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:25:48,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:48,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:25:48,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:25:48,101 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:48,427 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2021-04-15 23:25:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 23:25:48,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-04-15 23:25:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:48,428 INFO L225 Difference]: With dead ends: 95 [2021-04-15 23:25:48,428 INFO L226 Difference]: Without dead ends: 58 [2021-04-15 23:25:48,428 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-04-15 23:25:48,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-04-15 23:25:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-04-15 23:25:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 54 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-04-15 23:25:48,430 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 22 [2021-04-15 23:25:48,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:48,431 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-04-15 23:25:48,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,431 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-04-15 23:25:48,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-04-15 23:25:48,431 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:48,431 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:48,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-15 23:25:48,431 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -563432656, now seen corresponding path program 1 times [2021-04-15 23:25:48,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:48,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802210873] [2021-04-15 23:25:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:48,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:48,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:48,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:48,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:48,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:48,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802210873] [2021-04-15 23:25:48,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:48,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-15 23:25:48,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369697094] [2021-04-15 23:25:48,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 23:25:48,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:48,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 23:25:48,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-04-15 23:25:48,567 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:48,994 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-04-15 23:25:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 23:25:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-04-15 23:25:48,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:48,995 INFO L225 Difference]: With dead ends: 67 [2021-04-15 23:25:48,995 INFO L226 Difference]: Without dead ends: 65 [2021-04-15 23:25:48,995 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 336.9ms TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2021-04-15 23:25:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-04-15 23:25:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2021-04-15 23:25:48,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 50 states have (on average 1.06) internal successors, (53), 52 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-04-15 23:25:48,997 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 48 [2021-04-15 23:25:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:48,997 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-04-15 23:25:48,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-04-15 23:25:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-04-15 23:25:48,998 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:48,998 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:48,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-15 23:25:48,998 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:48,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:48,998 INFO L82 PathProgramCache]: Analyzing trace with hash -563446558, now seen corresponding path program 1 times [2021-04-15 23:25:48,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:48,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089521111] [2021-04-15 23:25:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:49,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:49,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:49,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:49,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089521111] [2021-04-15 23:25:49,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:49,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-15 23:25:49,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993346730] [2021-04-15 23:25:49,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 23:25:49,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:49,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 23:25:49,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-04-15 23:25:49,134 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:49,413 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-15 23:25:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:49,630 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-04-15 23:25:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 23:25:49,630 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-04-15 23:25:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:49,631 INFO L225 Difference]: With dead ends: 56 [2021-04-15 23:25:49,631 INFO L226 Difference]: Without dead ends: 54 [2021-04-15 23:25:49,631 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 431.7ms TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2021-04-15 23:25:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-04-15 23:25:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-04-15 23:25:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 50 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-04-15 23:25:49,633 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2021-04-15 23:25:49,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:49,633 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-04-15 23:25:49,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-04-15 23:25:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-04-15 23:25:49,633 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:49,633 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:49,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-15 23:25:49,633 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:49,634 INFO L82 PathProgramCache]: Analyzing trace with hash -286539729, now seen corresponding path program 1 times [2021-04-15 23:25:49,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:49,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058312626] [2021-04-15 23:25:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:49,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-04-15 23:25:49,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:49,669 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-15 23:25:49,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-15 23:25:49,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,679 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,687 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,688 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,689 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,690 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,690 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,692 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,693 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,695 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:49,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:49,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:49,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058312626] [2021-04-15 23:25:49,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:49,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-15 23:25:49,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013334492] [2021-04-15 23:25:49,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 23:25:49,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:49,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 23:25:49,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-04-15 23:25:49,733 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:49,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:49,883 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2021-04-15 23:25:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 23:25:49,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-04-15 23:25:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:49,884 INFO L225 Difference]: With dead ends: 62 [2021-04-15 23:25:49,884 INFO L226 Difference]: Without dead ends: 60 [2021-04-15 23:25:49,884 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 103.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-04-15 23:25:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-04-15 23:25:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2021-04-15 23:25:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-04-15 23:25:49,886 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2021-04-15 23:25:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:49,886 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-04-15 23:25:49,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-04-15 23:25:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-04-15 23:25:49,886 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:25:49,886 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:25:49,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-15 23:25:49,886 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:25:49,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:25:49,886 INFO L82 PathProgramCache]: Analyzing trace with hash -286970705, now seen corresponding path program 1 times [2021-04-15 23:25:49,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:25:49,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731947697] [2021-04-15 23:25:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:25:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:49,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-04-15 23:25:49,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:49,926 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-15 23:25:49,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-15 23:25:49,933 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,936 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,944 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,945 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,946 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,949 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,949 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,951 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,952 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 35.7 percent of original size [2021-04-15 23:25:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-15 23:25:49,955 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-04-15 23:25:49,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:25:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:25:49,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:25:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:25:49,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:25:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:25:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:25:49,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731947697] [2021-04-15 23:25:49,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:25:49,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-15 23:25:49,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841554308] [2021-04-15 23:25:49,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 23:25:49,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:25:49,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 23:25:49,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-04-15 23:25:49,997 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:25:50,143 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-04-15 23:25:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 23:25:50,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-04-15 23:25:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:25:50,144 INFO L225 Difference]: With dead ends: 52 [2021-04-15 23:25:50,144 INFO L226 Difference]: Without dead ends: 0 [2021-04-15 23:25:50,144 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 95.8ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-04-15 23:25:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-15 23:25:50,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-15 23:25:50,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 23:25:50,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-15 23:25:50,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-04-15 23:25:50,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:25:50,145 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-15 23:25:50,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:25:50,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-15 23:25:50,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-15 23:25:50,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-15 23:25:50,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-15 23:25:50,323 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-04-15 23:25:50,323 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-04-15 23:25:50,323 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-04-15 23:25:50,323 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-04-15 23:25:50,324 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__return_2598~0 |old(~__return_2598~0)|) (= ~__tmp_3137_1~0 |old(~__tmp_3137_1~0)|) (= |old(#valid)| |#valid|) (= ~__tmp_3137_0~0 |old(~__tmp_3137_0~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~__tmp_2624_0~0 |old(~__tmp_2624_0~0)|) (= ~__tmp_2624_1~0 |old(~__tmp_2624_1~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2021-04-15 23:25:50,324 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-04-15 23:25:50,324 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-04-15 23:25:50,324 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-15 23:25:50,324 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-15 23:25:50,324 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-04-15 23:25:50,324 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-04-15 23:25:50,324 INFO L198 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-04-15 23:25:50,324 INFO L198 CegarLoopUtils]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L217(lines 217 229) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 17 1006) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L597(lines 597 969) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L366(lines 366 991) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L267(lines 267 275) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L581(lines 581 971) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L36(line 36) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L317(lines 317 994) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point L400(lines 400 424) no Hoare annotation was computed. [2021-04-15 23:25:50,325 INFO L198 CegarLoopUtils]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L136(lines 136 242) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L103(lines 103 125) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L615(lines 615 626) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L929(lines 929 941) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L219(line 219) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L665(lines 665 963) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L434(lines 434 985) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L269(line 269) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 17 1006) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L649(lines 649 965) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L385(lines 385 988) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L468(lines 468 492) no Hoare annotation was computed. [2021-04-15 23:25:50,326 INFO L198 CegarLoopUtils]: For program point L881(lines 881 907) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L171(lines 171 193) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L683(lines 683 694) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L105(line 105) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L72(lines 72 288) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L931(line 931) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L733(lines 733 957) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L155(lines 155 234) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L502(lines 502 979) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L205(lines 205 231) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L717(lines 717 959) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L453(lines 453 982) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L866(lines 866 946) no Hoare annotation was computed. [2021-04-15 23:25:50,327 INFO L198 CegarLoopUtils]: For program point L255(lines 255 277) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L536(lines 536 560) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L883(line 883) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L751(lines 751 762) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L801(lines 801 951) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L157(line 157) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L570(lines 570 973) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L917(lines 917 943) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L785(lines 785 953) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L207(line 207) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2021-04-15 23:25:50,328 INFO L198 CegarLoopUtils]: For program point L521(lines 521 976) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L194 CegarLoopUtils]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L257(line 257) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L604(lines 604 628) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L819(lines 819 830) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L638(lines 638 967) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L919(line 919) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L853(lines 853 947) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L143(lines 143 236) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point L589(lines 589 970) no Hoare annotation was computed. [2021-04-15 23:25:50,329 INFO L198 CegarLoopUtils]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L325(lines 325 993) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L672(lines 672 696) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L309(lines 309 995) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L194 CegarLoopUtils]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L706(lines 706 961) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L343(lines 343 354) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L145(line 145) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L657(lines 657 964) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L46(lines 46 56) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L194 CegarLoopUtils]: At program point L1004(lines 22 1005) the Hoare annotation is: (or (and (= ~__tmp_2624_0~0 |old(~__tmp_2624_0~0)|) (= |old(~__return_2598~0)| ~__return_2598~0) (= ~__tmp_2624_1~0 |old(~__tmp_2624_1~0)|) (= ~__tmp_3137_1~0 |old(~__tmp_3137_1~0)|) (= ~__tmp_3137_0~0 |old(~__tmp_3137_0~0)|)) (<= 0 main_~main__t~0)) [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L393(lines 393 987) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L740(lines 740 764) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L198 CegarLoopUtils]: For program point L96(lines 96 285) no Hoare annotation was computed. [2021-04-15 23:25:50,330 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 17 1006) the Hoare annotation is: (and (= ~__tmp_2624_0~0 |old(~__tmp_2624_0~0)|) (= |old(~__return_2598~0)| ~__return_2598~0) (= ~__tmp_2624_1~0 |old(~__tmp_2624_1~0)|) (= ~__tmp_3137_1~0 |old(~__tmp_3137_1~0)|) (= ~__tmp_3137_0~0 |old(~__tmp_3137_0~0)|)) [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L377(lines 377 989) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L774(lines 774 955) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L411(lines 411 422) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L725(lines 725 958) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L48(line 48) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L461(lines 461 981) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L194 CegarLoopUtils]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 main_~main__t~0) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L874(lines 874 945) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L808(lines 808 832) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L164(lines 164 233) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L65(lines 65 999) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L445(lines 445 983) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L115(lines 115 123) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L842(lines 842 949) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point L132(lines 132 284) no Hoare annotation was computed. [2021-04-15 23:25:50,331 INFO L198 CegarLoopUtils]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L479(lines 479 490) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L793(lines 793 952) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L248(lines 248 283) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L83(lines 83 286) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L529(lines 529 975) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L298(lines 298 997) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L34(lines 34 58) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L513(lines 513 977) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L893(lines 893 905) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L194 CegarLoopUtils]: At program point L282(lines 132 284) the Hoare annotation is: (and (< main_~main__t~0 main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L183(lines 183 191) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L117(line 117) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L332(lines 332 356) no Hoare annotation was computed. [2021-04-15 23:25:50,332 INFO L198 CegarLoopUtils]: For program point L547(lines 547 558) no Hoare annotation was computed. [2021-04-15 23:25:50,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 11:25:50 BoogieIcfgContainer [2021-04-15 23:25:50,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 23:25:50,350 INFO L168 Benchmark]: Toolchain (without parser) took 9235.48 ms. Allocated memory was 179.3 MB in the beginning and 376.4 MB in the end (delta: 197.1 MB). Free memory was 143.8 MB in the beginning and 307.8 MB in the end (delta: -164.0 MB). Peak memory consumption was 167.2 MB. Max. memory is 8.0 GB. [2021-04-15 23:25:50,350 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 179.3 MB. Free memory is still 161.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-15 23:25:50,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.44 ms. Allocated memory is still 179.3 MB. Free memory was 143.6 MB in the beginning and 150.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-04-15 23:25:50,350 INFO L168 Benchmark]: Boogie Preprocessor took 35.99 ms. Allocated memory is still 179.3 MB. Free memory was 150.3 MB in the beginning and 147.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-04-15 23:25:50,350 INFO L168 Benchmark]: RCFGBuilder took 550.28 ms. Allocated memory is still 179.3 MB. Free memory was 147.6 MB in the beginning and 97.3 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. [2021-04-15 23:25:50,351 INFO L168 Benchmark]: TraceAbstraction took 8313.29 ms. Allocated memory was 179.3 MB in the beginning and 376.4 MB in the end (delta: 197.1 MB). Free memory was 96.8 MB in the beginning and 307.8 MB in the end (delta: -211.1 MB). Peak memory consumption was 120.3 MB. Max. memory is 8.0 GB. [2021-04-15 23:25:50,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 179.3 MB. Free memory is still 161.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 331.44 ms. Allocated memory is still 179.3 MB. Free memory was 143.6 MB in the beginning and 150.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.99 ms. Allocated memory is still 179.3 MB. Free memory was 150.3 MB in the beginning and 147.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 550.28 ms. Allocated memory is still 179.3 MB. Free memory was 147.6 MB in the beginning and 97.3 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8313.29 ms. Allocated memory was 179.3 MB in the beginning and 376.4 MB in the end (delta: 197.1 MB). Free memory was 96.8 MB in the beginning and 307.8 MB in the end (delta: -211.1 MB). Peak memory consumption was 120.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 883]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 132 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8063.8ms, OverallIterations: 19, TraceHistogramMax: 1, EmptinessCheckTime: 16.1ms, AutomataDifference: 5820.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 177.4ms, InitialAbstractionConstructionTime: 22.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1064 SDtfs, 2754 SDslu, 1151 SDs, 0 SdLazy, 4902 SolverSat, 522 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2812.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2931.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 111.3ms AutomataMinimizationTime, 19 MinimizatonAttempts, 148 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 117 HoareAnnotationTreeSize, 9 FomulaSimplifications, 4681 FormulaSimplificationTreeSizeReduction, 53.9ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 356 FormulaSimplificationTreeSizeReductionInter, 115.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 47.6ms SsaConstructionTime, 225.4ms SatisfiabilityAnalysisTime, 1662.7ms InterpolantComputationTime, 462 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 443 ConstructedInterpolants, 0 QuantifiedInterpolants, 2275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((__tmp_2624_0 == \old(__tmp_2624_0) && \old(__return_2598) == __return_2598) && __tmp_2624_1 == \old(__tmp_2624_1)) && __tmp_3137_1 == \old(__tmp_3137_1)) && __tmp_3137_0 == \old(__tmp_3137_0)) || 0 <= main__t - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t RESULT: Ultimate proved your program to be correct! Received shutdown request...