/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/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:52:24,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:52:24,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:52:24,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 00:52:24,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 00:52:24,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 00:52:24,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 00:52:24,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 00:52:24,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 00:52:24,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 00:52:24,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 00:52:24,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 00:52:24,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:52:24,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:52:24,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:52:24,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:52:24,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:52:24,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:52:24,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:52:24,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:52:24,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:52:24,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:52:24,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:52:24,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:52:24,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 00:52:24,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 00:52:24,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 00:52:24,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 00:52:24,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 00:52:24,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-02-22 00:52:24,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:52:24,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:52:24,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:52:24,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 00:52:24,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:52:24,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:52:24,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:52:24,452 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:52:24,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:52:24,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:52:24,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:52:24,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:52:24,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:52:24,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:52:24,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:52:24,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:52:24,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:52:24,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:52:24,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:52:24,455 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:52:24,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:52:24,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:52:24,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:52:24,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:52:24,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:52:24,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:52:24,456 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 00:52:24,456 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 00:52:24,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:52:24,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:52:24,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:52:24,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:52:24,887 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:52:24,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2021-02-22 00:52:24,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8470706b/929f5dfb28f7406493ec6560a7bc8859/FLAGae0c569e3 [2021-02-22 00:52:25,578 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:52:25,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2021-02-22 00:52:25,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8470706b/929f5dfb28f7406493ec6560a7bc8859/FLAGae0c569e3 [2021-02-22 00:52:25,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8470706b/929f5dfb28f7406493ec6560a7bc8859 [2021-02-22 00:52:25,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:52:25,884 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:52:25,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:52:25,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:52:25,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:52:25,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:52:25" (1/1) ... [2021-02-22 00:52:25,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c537097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:25, skipping insertion in model container [2021-02-22 00:52:25,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:52:25" (1/1) ... [2021-02-22 00:52:25,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:52:25,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:52:26,135 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c[1281,1294] [2021-02-22 00:52:26,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:52:26,271 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:52:26,290 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c[1281,1294] [2021-02-22 00:52:26,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:52:26,433 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:52:26,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26 WrapperNode [2021-02-22 00:52:26,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:52:26,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:52:26,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:52:26,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:52:26,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (1/1) ... [2021-02-22 00:52:26,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:52:26,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:52:26,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:52:26,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:52:26,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (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 [2021-02-22 00:52:26,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:52:26,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:52:26,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 00:52:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:52:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 00:52:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 00:52:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 00:52:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 00:52:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 00:52:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-22 00:52:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 00:52:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 00:52:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 00:52:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 00:52:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 00:52:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 00:52:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-22 00:52:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-22 00:52:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 00:52:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 00:52:26,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 00:52:26,651 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 00:52:26,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 00:52:26,651 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 00:52:26,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 00:52:26,651 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 00:52:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 00:52:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 00:52:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 00:52:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 00:52:26,654 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:52:26,654 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:52:26,654 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:52:26,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:52:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:52:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 00:52:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 00:52:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 00:52:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 00:52:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-22 00:52:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-22 00:52:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 00:52:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 00:52:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-22 00:52:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 00:52:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 00:52:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 00:52:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 00:52:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 00:52:26,684 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 00:52:26,684 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 00:52:26,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-22 00:52:26,685 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 00:52:26,685 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:52:26,685 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 00:52:26,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 00:52:26,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 00:52:26,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 00:52:26,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 00:52:26,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:52:26,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:52:26,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:52:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 00:52:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:52:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 00:52:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 00:52:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:52:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 00:52:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 00:52:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 00:52:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:52:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:52:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:52:28,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:52:28,485 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 00:52:28,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:52:28 BoogieIcfgContainer [2021-02-22 00:52:28,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:52:28,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:52:28,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:52:28,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:52:28,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:52:25" (1/3) ... [2021-02-22 00:52:28,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e85a2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:52:28, skipping insertion in model container [2021-02-22 00:52:28,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:52:26" (2/3) ... [2021-02-22 00:52:28,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e85a2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:52:28, skipping insertion in model container [2021-02-22 00:52:28,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:52:28" (3/3) ... [2021-02-22 00:52:28,498 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2021-02-22 00:52:28,505 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:52:28,512 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:52:28,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:52:28,588 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:52:28,588 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:52:28,588 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 00:52:28,588 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:52:28,588 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:52:28,589 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:52:28,589 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:52:28,589 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:52:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2021-02-22 00:52:28,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-22 00:52:28,649 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:28,650 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:28,650 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:28,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:28,657 INFO L82 PathProgramCache]: Analyzing trace with hash 2087784931, now seen corresponding path program 1 times [2021-02-22 00:52:28,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:28,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774908725] [2021-02-22 00:52:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:28,755 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:29,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:29,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:29,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:29,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:29,986 WARN L202 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:29,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:52:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 00:52:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:30,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774908725] [2021-02-22 00:52:30,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:30,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 00:52:30,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028299582] [2021-02-22 00:52:30,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 00:52:30,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:30,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 00:52:30,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:52:30,202 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2021-02-22 00:52:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:32,549 INFO L93 Difference]: Finished difference Result 505 states and 595 transitions. [2021-02-22 00:52:32,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 00:52:32,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-22 00:52:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:32,569 INFO L225 Difference]: With dead ends: 505 [2021-02-22 00:52:32,569 INFO L226 Difference]: Without dead ends: 323 [2021-02-22 00:52:32,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:52:32,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-02-22 00:52:32,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 271. [2021-02-22 00:52:32,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2021-02-22 00:52:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2021-02-22 00:52:32,751 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 153 [2021-02-22 00:52:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:32,754 INFO L480 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2021-02-22 00:52:32,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 00:52:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2021-02-22 00:52:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-22 00:52:32,767 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:32,768 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:32,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:52:32,768 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:32,769 INFO L82 PathProgramCache]: Analyzing trace with hash 762887491, now seen corresponding path program 1 times [2021-02-22 00:52:32,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:32,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470962604] [2021-02-22 00:52:32,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:32,776 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:32,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:32,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:32,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:32,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:32,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,606 WARN L202 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-22 00:52:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 00:52:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:33,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:33,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:33,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470962604] [2021-02-22 00:52:33,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:33,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 00:52:33,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271236133] [2021-02-22 00:52:33,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 00:52:33,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:33,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 00:52:33,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-22 00:52:33,725 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 5 states. [2021-02-22 00:52:35,008 WARN L202 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:36,832 INFO L93 Difference]: Finished difference Result 420 states and 475 transitions. [2021-02-22 00:52:36,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 00:52:36,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-22 00:52:36,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:36,843 INFO L225 Difference]: With dead ends: 420 [2021-02-22 00:52:36,843 INFO L226 Difference]: Without dead ends: 312 [2021-02-22 00:52:36,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-22 00:52:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-02-22 00:52:36,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 261. [2021-02-22 00:52:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2021-02-22 00:52:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 280 transitions. [2021-02-22 00:52:36,950 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 280 transitions. Word has length 154 [2021-02-22 00:52:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:36,951 INFO L480 AbstractCegarLoop]: Abstraction has 261 states and 280 transitions. [2021-02-22 00:52:36,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 00:52:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 280 transitions. [2021-02-22 00:52:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-22 00:52:36,953 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:36,953 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:36,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 00:52:36,954 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:36,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:36,955 INFO L82 PathProgramCache]: Analyzing trace with hash -164768204, now seen corresponding path program 1 times [2021-02-22 00:52:36,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:36,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219939376] [2021-02-22 00:52:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:36,959 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:37,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:37,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:52:37,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,786 WARN L202 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:37,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:37,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-22 00:52:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-22 00:52:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:38,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:38,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:38,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-22 00:52:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:38,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:38,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:38,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219939376] [2021-02-22 00:52:38,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:38,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 00:52:38,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758514768] [2021-02-22 00:52:38,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 00:52:38,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:38,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 00:52:38,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:52:38,093 INFO L87 Difference]: Start difference. First operand 261 states and 280 transitions. Second operand 11 states. [2021-02-22 00:52:39,147 WARN L202 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:40,030 WARN L202 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:40,730 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:52:41,506 WARN L202 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:42,254 WARN L202 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:42,934 WARN L202 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:44,749 WARN L202 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:49,233 INFO L93 Difference]: Finished difference Result 714 states and 834 transitions. [2021-02-22 00:52:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-22 00:52:49,234 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2021-02-22 00:52:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:49,240 INFO L225 Difference]: With dead ends: 714 [2021-02-22 00:52:49,240 INFO L226 Difference]: Without dead ends: 573 [2021-02-22 00:52:49,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2021-02-22 00:52:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-02-22 00:52:49,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 454. [2021-02-22 00:52:49,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2021-02-22 00:52:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 503 transitions. [2021-02-22 00:52:49,503 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 503 transitions. Word has length 167 [2021-02-22 00:52:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:49,505 INFO L480 AbstractCegarLoop]: Abstraction has 454 states and 503 transitions. [2021-02-22 00:52:49,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 00:52:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 503 transitions. [2021-02-22 00:52:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-22 00:52:49,513 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:49,514 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:49,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 00:52:49,514 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:49,515 INFO L82 PathProgramCache]: Analyzing trace with hash 772152383, now seen corresponding path program 1 times [2021-02-22 00:52:49,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:49,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840321389] [2021-02-22 00:52:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:49,519 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:49,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:49,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:49,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:49,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:49,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:49,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,162 WARN L202 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:50,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:50,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 00:52:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-22 00:52:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:50,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-22 00:52:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:50,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:50,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:50,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840321389] [2021-02-22 00:52:50,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:50,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:52:50,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261428089] [2021-02-22 00:52:50,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:52:50,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:50,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:52:50,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:52:50,390 INFO L87 Difference]: Start difference. First operand 454 states and 503 transitions. Second operand 10 states. [2021-02-22 00:52:51,456 WARN L202 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:54,161 WARN L202 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:54,923 WARN L202 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:55,775 WARN L202 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:56,495 WARN L202 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:57,221 WARN L202 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:57,926 WARN L202 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:58,633 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:59,620 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:02,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:53:02,482 INFO L93 Difference]: Finished difference Result 1250 states and 1504 transitions. [2021-02-22 00:53:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-22 00:53:02,484 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-22 00:53:02,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:53:02,491 INFO L225 Difference]: With dead ends: 1250 [2021-02-22 00:53:02,491 INFO L226 Difference]: Without dead ends: 916 [2021-02-22 00:53:02,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-02-22 00:53:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2021-02-22 00:53:02,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 740. [2021-02-22 00:53:02,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2021-02-22 00:53:02,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 830 transitions. [2021-02-22 00:53:02,794 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 830 transitions. Word has length 172 [2021-02-22 00:53:02,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:53:02,795 INFO L480 AbstractCegarLoop]: Abstraction has 740 states and 830 transitions. [2021-02-22 00:53:02,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:53:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 830 transitions. [2021-02-22 00:53:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-22 00:53:02,798 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:53:02,798 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:53:02,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 00:53:02,799 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:53:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:53:02,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1472019994, now seen corresponding path program 1 times [2021-02-22 00:53:02,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:53:02,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911067007] [2021-02-22 00:53:02,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:53:02,803 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:53:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:02,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:02,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:02,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,554 WARN L202 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:53:03,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:53:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:53:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:53:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:53:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:53:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:53:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:53:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-22 00:53:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:03,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-22 00:53:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-22 00:53:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:03,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:03,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:03,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:03,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:53:03,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911067007] [2021-02-22 00:53:03,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:53:03,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 00:53:03,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232869491] [2021-02-22 00:53:03,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 00:53:03,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:53:03,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 00:53:03,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:53:03,781 INFO L87 Difference]: Start difference. First operand 740 states and 830 transitions. Second operand 11 states. [2021-02-22 00:53:04,876 WARN L202 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:53:07,377 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:53:08,082 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:53:08,886 WARN L202 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:53:09,691 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:53:10,414 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:53:11,991 WARN L202 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:53:12,687 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:53:13,482 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:15,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:53:15,199 INFO L93 Difference]: Finished difference Result 1922 states and 2352 transitions. [2021-02-22 00:53:15,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-22 00:53:15,200 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2021-02-22 00:53:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:53:15,211 INFO L225 Difference]: With dead ends: 1922 [2021-02-22 00:53:15,212 INFO L226 Difference]: Without dead ends: 1302 [2021-02-22 00:53:15,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2021-02-22 00:53:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2021-02-22 00:53:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1014. [2021-02-22 00:53:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2021-02-22 00:53:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1144 transitions. [2021-02-22 00:53:15,681 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1144 transitions. Word has length 177 [2021-02-22 00:53:15,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:53:15,682 INFO L480 AbstractCegarLoop]: Abstraction has 1014 states and 1144 transitions. [2021-02-22 00:53:15,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 00:53:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1144 transitions. [2021-02-22 00:53:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-22 00:53:15,687 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:53:15,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:53:15,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 00:53:15,688 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:53:15,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:53:15,688 INFO L82 PathProgramCache]: Analyzing trace with hash -345141381, now seen corresponding path program 1 times [2021-02-22 00:53:15,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:53:15,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119978301] [2021-02-22 00:53:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:53:15,692 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:53:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:15,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:15,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:15,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:15,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,353 WARN L202 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:53:16,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:53:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:53:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:53:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:53:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:53:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:53:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:53:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-22 00:53:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 00:53:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:16,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:16,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:53:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:16,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:16,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:16,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:53:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:53:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:53:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 00:53:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-22 00:53:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:16,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:16,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:53:16,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119978301] [2021-02-22 00:53:16,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:53:16,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 00:53:16,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47773537] [2021-02-22 00:53:16,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 00:53:16,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:53:16,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 00:53:16,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-22 00:53:16,703 INFO L87 Difference]: Start difference. First operand 1014 states and 1144 transitions. Second operand 12 states. [2021-02-22 00:53:19,428 WARN L202 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:53:20,198 WARN L202 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:53:20,987 WARN L202 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 00:53:21,779 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:22,616 WARN L202 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:53:23,322 WARN L202 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:53:27,387 INFO L93 Difference]: Finished difference Result 2563 states and 3248 transitions. [2021-02-22 00:53:27,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-22 00:53:27,388 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2021-02-22 00:53:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:53:27,400 INFO L225 Difference]: With dead ends: 2563 [2021-02-22 00:53:27,400 INFO L226 Difference]: Without dead ends: 1669 [2021-02-22 00:53:27,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2021-02-22 00:53:27,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-02-22 00:53:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1052. [2021-02-22 00:53:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2021-02-22 00:53:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1182 transitions. [2021-02-22 00:53:27,796 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1182 transitions. Word has length 227 [2021-02-22 00:53:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:53:27,796 INFO L480 AbstractCegarLoop]: Abstraction has 1052 states and 1182 transitions. [2021-02-22 00:53:27,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 00:53:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1182 transitions. [2021-02-22 00:53:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-22 00:53:27,801 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:53:27,802 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:53:27,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 00:53:27,802 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:53:27,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:53:27,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1094658011, now seen corresponding path program 1 times [2021-02-22 00:53:27,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:53:27,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986748729] [2021-02-22 00:53:27,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:53:27,806 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:53:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:27,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:27,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:27,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:27,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:27,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:27,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:27,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:27,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:27,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:27,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,555 WARN L202 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:53:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:53:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:53:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:53:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:53:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:28,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:28,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:53:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:53:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:53:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-22 00:53:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 00:53:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:53:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:28,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:28,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:53:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:28,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:28,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:53:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:53:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 00:53:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-22 00:53:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:28,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:28,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:53:28,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986748729] [2021-02-22 00:53:28,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:53:28,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-22 00:53:28,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498771060] [2021-02-22 00:53:28,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-22 00:53:28,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:53:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-22 00:53:28,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-02-22 00:53:28,922 INFO L87 Difference]: Start difference. First operand 1052 states and 1182 transitions. Second operand 15 states. [2021-02-22 00:53:30,226 WARN L202 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:53:30,968 WARN L202 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:53:31,687 WARN L202 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:32,425 WARN L202 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:53:33,158 WARN L202 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:35,237 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:35,974 WARN L202 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:53:36,750 WARN L202 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:37,560 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:53:38,273 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:53:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:53:43,056 INFO L93 Difference]: Finished difference Result 2637 states and 3318 transitions. [2021-02-22 00:53:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-22 00:53:43,057 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 227 [2021-02-22 00:53:43,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:53:43,067 INFO L225 Difference]: With dead ends: 2637 [2021-02-22 00:53:43,067 INFO L226 Difference]: Without dead ends: 1705 [2021-02-22 00:53:43,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2021-02-22 00:53:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2021-02-22 00:53:43,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1076. [2021-02-22 00:53:43,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2021-02-22 00:53:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1206 transitions. [2021-02-22 00:53:43,621 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1206 transitions. Word has length 227 [2021-02-22 00:53:43,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:53:43,621 INFO L480 AbstractCegarLoop]: Abstraction has 1076 states and 1206 transitions. [2021-02-22 00:53:43,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-22 00:53:43,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1206 transitions. [2021-02-22 00:53:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-22 00:53:43,627 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:53:43,627 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:53:43,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 00:53:43,627 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:53:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:53:43,628 INFO L82 PathProgramCache]: Analyzing trace with hash 474186264, now seen corresponding path program 1 times [2021-02-22 00:53:43,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:53:43,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226267310] [2021-02-22 00:53:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:53:43,631 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:53:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:43,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:43,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:43,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:43,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:43,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:43,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:43,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:43,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:43,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:43,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:53:43,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:43,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,322 WARN L202 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:53:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:53:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:53:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:53:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:53:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:53:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:53:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:53:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:53:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-22 00:53:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 00:53:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:44,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:53:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:53:44,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:53:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:53:44,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:53:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:53:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 00:53:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-22 00:53:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:44,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:44,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:53:44,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226267310] [2021-02-22 00:53:44,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:53:44,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 00:53:44,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041192964] [2021-02-22 00:53:44,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 00:53:44,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:53:44,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 00:53:44,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-22 00:53:44,652 INFO L87 Difference]: Start difference. First operand 1076 states and 1206 transitions. Second operand 9 states. [2021-02-22 00:53:45,770 WARN L202 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:53:47,126 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:53:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:53:54,587 INFO L93 Difference]: Finished difference Result 4172 states and 5306 transitions. [2021-02-22 00:53:54,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-22 00:53:54,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 227 [2021-02-22 00:53:54,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:53:54,609 INFO L225 Difference]: With dead ends: 4172 [2021-02-22 00:53:54,609 INFO L226 Difference]: Without dead ends: 3216 [2021-02-22 00:53:54,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1176, Unknown=0, NotChecked=0, Total=1482 [2021-02-22 00:53:54,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2021-02-22 00:53:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 2228. [2021-02-22 00:53:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2021-02-22 00:53:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2532 transitions. [2021-02-22 00:53:55,673 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2532 transitions. Word has length 227 [2021-02-22 00:53:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:53:55,674 INFO L480 AbstractCegarLoop]: Abstraction has 2228 states and 2532 transitions. [2021-02-22 00:53:55,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 00:53:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2532 transitions. [2021-02-22 00:53:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-02-22 00:53:55,678 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:53:55,679 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:53:55,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 00:53:55,679 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:53:55,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:53:55,679 INFO L82 PathProgramCache]: Analyzing trace with hash -810589803, now seen corresponding path program 1 times [2021-02-22 00:53:55,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:53:55,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727232174] [2021-02-22 00:53:55,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:53:55,683 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:53:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:55,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:55,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:55,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:55,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:55,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:55,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:55,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:55,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:55,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:55,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:53:55,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:55,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,454 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:53:56,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:53:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:53:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:53:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:53:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:56,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:56,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:53:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:53:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 00:53:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:53:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-22 00:53:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-02-22 00:53:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:53:56,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:53:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:53:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:53:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,800 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-22 00:53:56,801 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-22 00:53:56,848 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-22 00:53:56,850 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-22 00:53:56,905 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 00:53:56,906 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 00:53:56,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:56,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:56,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:56,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:56,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:57,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:57,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:53:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:57,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:57,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:57,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:53:57,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:53:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:57,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:57,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-02-22 00:53:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:57,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:57,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-02-22 00:53:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:53:57,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:57,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:53:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:53:57,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727232174] [2021-02-22 00:53:57,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:53:57,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-22 00:53:57,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859102969] [2021-02-22 00:53:57,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-22 00:53:57,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:53:57,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-22 00:53:57,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2021-02-22 00:53:57,259 INFO L87 Difference]: Start difference. First operand 2228 states and 2532 transitions. Second operand 22 states. [2021-02-22 00:53:58,510 WARN L202 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:53:59,519 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:54:00,339 WARN L202 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 00:54:01,094 WARN L202 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:01,845 WARN L202 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:54:02,557 WARN L202 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:04,581 WARN L202 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:54:06,452 WARN L202 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:07,325 WARN L202 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:54:08,391 WARN L202 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:09,234 WARN L202 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:54:12,786 WARN L202 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:13,822 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:54:14,566 WARN L202 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:15,341 WARN L202 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:54:16,118 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:17,134 WARN L202 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:54:17,900 WARN L202 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:54:18,748 WARN L202 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:54:20,279 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-22 00:54:21,962 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2021-02-22 00:54:23,485 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-22 00:54:31,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:54:31,514 INFO L93 Difference]: Finished difference Result 5246 states and 6382 transitions. [2021-02-22 00:54:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-22 00:54:31,515 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 232 [2021-02-22 00:54:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:54:31,535 INFO L225 Difference]: With dead ends: 5246 [2021-02-22 00:54:31,536 INFO L226 Difference]: Without dead ends: 3138 [2021-02-22 00:54:31,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1965 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=1223, Invalid=5419, Unknown=0, NotChecked=0, Total=6642 [2021-02-22 00:54:31,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3138 states. [2021-02-22 00:54:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3138 to 2184. [2021-02-22 00:54:32,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2184 states. [2021-02-22 00:54:32,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2472 transitions. [2021-02-22 00:54:32,499 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2472 transitions. Word has length 232 [2021-02-22 00:54:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:54:32,499 INFO L480 AbstractCegarLoop]: Abstraction has 2184 states and 2472 transitions. [2021-02-22 00:54:32,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-22 00:54:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2472 transitions. [2021-02-22 00:54:32,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-02-22 00:54:32,505 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:54:32,506 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:54:32,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 00:54:32,506 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:54:32,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:54:32,507 INFO L82 PathProgramCache]: Analyzing trace with hash -860034400, now seen corresponding path program 1 times [2021-02-22 00:54:32,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:54:32,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703358917] [2021-02-22 00:54:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:54:32,627 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:32,628 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:32,642 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:32,642 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:32,654 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:54:32,677 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:54:32,701 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:32,707 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:32,715 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:32,719 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:32,725 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:32,726 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:32,729 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:54:32,731 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:54:32,735 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:32,741 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:32,745 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:32,756 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:32,760 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:32,769 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:32,847 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 00:54:32,849 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 00:54:32,852 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:32,855 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:32,859 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:32,860 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:32,862 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:32,863 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:32,866 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:54:32,869 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:54:32,871 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:32,875 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:32,879 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:32,886 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:32,891 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:32,899 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:32,976 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 00:54:32,978 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 00:54:32,981 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:32,985 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:32,988 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:32,995 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:32,998 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:33,010 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:33,087 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-22 00:54:33,093 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-22 00:54:33,100 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:54:33,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 00:54:33,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:54:33,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-22 00:54:33,120 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-22 00:54:33,127 WARN L141 QuantifierPusher]: treesize reduction 17, result has 87.3 percent of original size [2021-02-22 00:54:33,132 WARN L147 QuantifierPusher]: treesize reduction 17, result has 87.3 percent of original size 117 [2021-02-22 00:54:33,134 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:33,135 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:33,136 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-22 00:54:33,137 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-22 00:54:33,140 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:54:33,142 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:54:33,145 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:33,146 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:33,150 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:33,157 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:33,159 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-22 00:54:33,168 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-22 00:54:33,243 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 00:54:33,244 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 00:54:33,247 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-22 00:54:33,249 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-22 00:54:33,249 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 00:54:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:54:33,372 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:54:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:54:33,475 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:54:33,717 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:54:33,717 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:54:33,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 00:54:33,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:54:33 BoogieIcfgContainer [2021-02-22 00:54:33,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:54:33,776 INFO L168 Benchmark]: Toolchain (without parser) took 127901.11 ms. Allocated memory was 153.1 MB in the beginning and 828.4 MB in the end (delta: 675.3 MB). Free memory was 128.8 MB in the beginning and 597.2 MB in the end (delta: -468.4 MB). Peak memory consumption was 207.9 MB. Max. memory is 8.0 GB. [2021-02-22 00:54:33,776 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:54:33,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.36 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 106.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:54:33,778 INFO L168 Benchmark]: Boogie Preprocessor took 102.87 ms. Allocated memory is still 153.1 MB. Free memory was 106.5 MB in the beginning and 102.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:54:33,778 INFO L168 Benchmark]: RCFGBuilder took 1950.01 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 102.4 MB in the beginning and 151.6 MB in the end (delta: -49.2 MB). Peak memory consumption was 53.8 MB. Max. memory is 8.0 GB. [2021-02-22 00:54:33,779 INFO L168 Benchmark]: TraceAbstraction took 125284.29 ms. Allocated memory was 190.8 MB in the beginning and 828.4 MB in the end (delta: 637.5 MB). Free memory was 151.6 MB in the beginning and 597.2 MB in the end (delta: -445.6 MB). Peak memory consumption was 191.9 MB. Max. memory is 8.0 GB. [2021-02-22 00:54:33,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 548.36 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 106.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 102.87 ms. Allocated memory is still 153.1 MB. Free memory was 106.5 MB in the beginning and 102.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1950.01 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 102.4 MB in the beginning and 151.6 MB in the end (delta: -49.2 MB). Peak memory consumption was 53.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 125284.29 ms. Allocated memory was 190.8 MB in the beginning and 828.4 MB in the end (delta: 637.5 MB). Free memory was 151.6 MB in the beginning and 597.2 MB in the end (delta: -445.6 MB). Peak memory consumption was 191.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L441] int retValue_acc ; [L442] int tmp ; [L446] FCALL select_helpers() [L447] FCALL select_features() [L448] CALL, EXPR valid_product() [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); [L448] RET, EXPR valid_product() [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) [L452] FCALL setup() [L453] CALL runTest() [L434] CALL __utac_acc__Specification2_spec__1() [L469] methAndRunningLastTime = 0 [L434] RET __utac_acc__Specification2_spec__1() [L435] CALL test() [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp) [L79] CALL waterRise() [L522] COND TRUE waterLevel < 2 [L523] waterLevel = waterLevel + 1 [L79] RET waterRise() [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L99] CALL startSystem() [L323] systemActive = 1 [L99] RET startSystem() [L114] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L292] CALL, EXPR isHighWaterSensorDry() [L584] int retValue_acc ; [L587] COND FALSE !(waterLevel < 2) [L591] retValue_acc = 0 [L592] return (retValue_acc); [L292] RET, EXPR isHighWaterSensorDry() [L292] tmp = isHighWaterSensorDry() [L294] COND FALSE !(\read(tmp)) [L297] tmp___0 = 1 [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND TRUE \read(tmp) [L180] CALL activatePump() [L205] int tmp ; [L209] CALL, EXPR isMethaneAlarm() [L230] int retValue_acc ; [L234] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L234] RET, EXPR isMethaneLevelCritical() [L234] retValue_acc = isMethaneLevelCritical() [L236] return (retValue_acc); [L209] RET, EXPR isMethaneAlarm() [L209] tmp = isMethaneAlarm() [L211] COND FALSE !(\read(tmp)) [L215] CALL activatePump__wrappee__highWaterSensor() [L199] pumpRunning = 1 [L215] RET activatePump__wrappee__highWaterSensor() [L180] RET activatePump() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification2_spec__2() [L474] int tmp ; [L475] int tmp___0 ; [L479] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L479] RET, EXPR isMethaneLevelCritical() [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 [L157] RET __utac_acc__Specification2_spec__2() [L114] RET timeShift() [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___0) [L89] CALL changeMethaneLevel() [L534] COND FALSE !(\read(methaneLevelCritical)) [L537] methaneLevelCritical = 1 [L89] RET changeMethaneLevel() [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L99] CALL startSystem() [L323] systemActive = 1 [L99] RET startSystem() [L114] CALL timeShift() [L142] COND TRUE \read(pumpRunning) [L144] CALL lowerWaterLevel() [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 [L144] RET lowerWaterLevel() [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L171] int tmp ; [L174] COND FALSE !(! pumpRunning) [L189] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification2_spec__2() [L474] int tmp ; [L475] int tmp___0 ; [L479] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L479] RET, EXPR isMethaneLevelCritical() [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L483] CALL, EXPR isPumpRunning() [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); [L483] RET, EXPR isPumpRunning() [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) [L486] COND TRUE \read(methAndRunningLastTime) [L488] CALL __automaton_fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 125.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 109.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2458 SDtfs, 8569 SDslu, 7060 SDs, 0 SdLazy, 15270 SolverSat, 3103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 562 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3135 ImplicationChecksByTransitivity, 59.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2228occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 3874 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...