/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 19:30:27,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 19:30:27,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 19:30:27,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 19:30:27,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 19:30:27,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 19:30:27,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 19:30:27,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 19:30:27,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 19:30:27,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 19:30:27,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 19:30:27,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 19:30:27,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 19:30:27,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 19:30:27,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 19:30:27,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 19:30:27,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 19:30:27,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 19:30:27,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 19:30:27,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 19:30:27,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 19:30:27,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 19:30:27,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 19:30:27,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 19:30:27,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 19:30:27,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 19:30:27,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 19:30:27,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 19:30:27,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 19:30:27,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 19:30:27,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 19:30:27,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 19:30:27,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 19:30:27,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 19:30:27,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 19:30:27,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 19:30:27,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 19:30:27,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 19:30:27,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 19:30:27,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 19:30:27,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 19:30:27,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 19:30:27,855 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 19:30:27,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 19:30:27,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 19:30:27,857 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 19:30:27,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 19:30:27,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 19:30:27,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 19:30:27,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 19:30:27,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 19:30:27,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 19:30:27,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 19:30:27,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 19:30:27,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 19:30:27,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 19:30:27,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 19:30:27,860 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 19:30:27,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 19:30:27,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 19:30:27,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 19:30:27,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 19:30:27,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 19:30:27,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 19:30:27,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 19:30:28,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 19:30:28,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 19:30:28,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 19:30:28,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 19:30:28,340 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 19:30:28,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2021-02-21 19:30:28,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84ab9e9e/04605169ccb44777b64784264a831f98/FLAG3d0e9a150 [2021-02-21 19:30:29,319 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 19:30:29,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2021-02-21 19:30:29,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84ab9e9e/04605169ccb44777b64784264a831f98/FLAG3d0e9a150 [2021-02-21 19:30:29,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84ab9e9e/04605169ccb44777b64784264a831f98 [2021-02-21 19:30:29,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 19:30:29,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 19:30:29,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 19:30:29,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 19:30:29,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 19:30:29,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 07:30:29" (1/1) ... [2021-02-21 19:30:29,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f55750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:29, skipping insertion in model container [2021-02-21 19:30:29,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 07:30:29" (1/1) ... [2021-02-21 19:30:29,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 19:30:29,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 19:30:30,063 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_spec4_product38.cil.c[3977,3990] [2021-02-21 19:30:30,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 19:30:30,271 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 19:30:30,299 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_spec4_product38.cil.c[3977,3990] [2021-02-21 19:30:30,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 19:30:30,392 INFO L208 MainTranslator]: Completed translation [2021-02-21 19:30:30,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30 WrapperNode [2021-02-21 19:30:30,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 19:30:30,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 19:30:30,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 19:30:30,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 19:30:30,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (1/1) ... [2021-02-21 19:30:30,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 19:30:30,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 19:30:30,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 19:30:30,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 19:30:30,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (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 [2021-02-21 19:30:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 19:30:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 19:30:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 19:30:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 19:30:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 19:30:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 19:30:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 19:30:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 19:30:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 19:30:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 19:30:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 19:30:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 19:30:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 19:30:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 19:30:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 19:30:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-21 19:30:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 19:30:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-21 19:30:30,685 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 19:30:30,685 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 19:30:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 19:30:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-21 19:30:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-21 19:30:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 19:30:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 19:30:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 19:30:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 19:30:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 19:30:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 19:30:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 19:30:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 19:30:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 19:30:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 19:30:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 19:30:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 19:30:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 19:30:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 19:30:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-21 19:30:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 19:30:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 19:30:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 19:30:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 19:30:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-21 19:30:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-21 19:30:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 19:30:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 19:30:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 19:30:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 19:30:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 19:30:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 19:30:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 19:30:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 19:30:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 19:30:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 19:30:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 19:30:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 19:30:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 19:30:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 19:30:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 19:30:32,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 19:30:32,094 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 19:30:32,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 07:30:32 BoogieIcfgContainer [2021-02-21 19:30:32,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 19:30:32,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 19:30:32,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 19:30:32,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 19:30:32,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 07:30:29" (1/3) ... [2021-02-21 19:30:32,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7151ae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 07:30:32, skipping insertion in model container [2021-02-21 19:30:32,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:30:30" (2/3) ... [2021-02-21 19:30:32,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7151ae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 07:30:32, skipping insertion in model container [2021-02-21 19:30:32,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 07:30:32" (3/3) ... [2021-02-21 19:30:32,109 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2021-02-21 19:30:32,117 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 19:30:32,124 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 19:30:32,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 19:30:32,175 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 19:30:32,175 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 19:30:32,176 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 19:30:32,176 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 19:30:32,176 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 19:30:32,176 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 19:30:32,176 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 19:30:32,177 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 19:30:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2021-02-21 19:30:32,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-21 19:30:32,235 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:30:32,236 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] [2021-02-21 19:30:32,236 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:30:32,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:30:32,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1630711049, now seen corresponding path program 1 times [2021-02-21 19:30:32,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:30:32,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760625936] [2021-02-21 19:30:32,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:30:32,353 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:30:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:32,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:32,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:32,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:32,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,278 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:30:33,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:30:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:30:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:30:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:30:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:30:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-21 19:30:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 19:30:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:33,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:33,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:30:33,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760625936] [2021-02-21 19:30:33,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:30:33,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 19:30:33,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394139077] [2021-02-21 19:30:33,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 19:30:33,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:30:33,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 19:30:33,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 19:30:33,532 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2021-02-21 19:30:35,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:30:35,643 INFO L93 Difference]: Finished difference Result 492 states and 582 transitions. [2021-02-21 19:30:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 19:30:35,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-21 19:30:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:30:35,681 INFO L225 Difference]: With dead ends: 492 [2021-02-21 19:30:35,681 INFO L226 Difference]: Without dead ends: 306 [2021-02-21 19:30:35,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 19:30:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-02-21 19:30:35,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 264. [2021-02-21 19:30:35,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2021-02-21 19:30:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 285 transitions. [2021-02-21 19:30:35,909 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 285 transitions. Word has length 147 [2021-02-21 19:30:35,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:30:35,910 INFO L480 AbstractCegarLoop]: Abstraction has 264 states and 285 transitions. [2021-02-21 19:30:35,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 19:30:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 285 transitions. [2021-02-21 19:30:35,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-21 19:30:35,915 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:30:35,915 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] [2021-02-21 19:30:35,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 19:30:35,916 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:30:35,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:30:35,917 INFO L82 PathProgramCache]: Analyzing trace with hash 802421343, now seen corresponding path program 1 times [2021-02-21 19:30:35,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:30:35,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179117808] [2021-02-21 19:30:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:30:35,923 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:30:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:36,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,383 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:30:36,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:30:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:30:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:30:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:30:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:30:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 19:30:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:30:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:36,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:36,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:36,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:30:36,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179117808] [2021-02-21 19:30:36,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:30:36,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 19:30:36,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417029252] [2021-02-21 19:30:36,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 19:30:36,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:30:36,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 19:30:36,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 19:30:36,499 INFO L87 Difference]: Start difference. First operand 264 states and 285 transitions. Second operand 4 states. [2021-02-21 19:30:37,342 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:30:38,583 INFO L93 Difference]: Finished difference Result 404 states and 452 transitions. [2021-02-21 19:30:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 19:30:38,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-21 19:30:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:30:38,588 INFO L225 Difference]: With dead ends: 404 [2021-02-21 19:30:38,588 INFO L226 Difference]: Without dead ends: 289 [2021-02-21 19:30:38,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 19:30:38,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-02-21 19:30:38,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 254. [2021-02-21 19:30:38,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-02-21 19:30:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 272 transitions. [2021-02-21 19:30:38,697 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 272 transitions. Word has length 148 [2021-02-21 19:30:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:30:38,698 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 272 transitions. [2021-02-21 19:30:38,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 19:30:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 272 transitions. [2021-02-21 19:30:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-21 19:30:38,701 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:30:38,702 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] [2021-02-21 19:30:38,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 19:30:38,702 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:30:38,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:30:38,703 INFO L82 PathProgramCache]: Analyzing trace with hash -70419785, now seen corresponding path program 1 times [2021-02-21 19:30:38,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:30:38,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585898305] [2021-02-21 19:30:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:30:38,708 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:30:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:38,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:38,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:38,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:38,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:38,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:38,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:38,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:38,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:38,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:38,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:38,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:38,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,313 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:30:39,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:30:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:30:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:30:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:30:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:30:39,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:30:39,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:30:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:30:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:39,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 19:30:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-21 19:30:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:39,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:39,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:30:39,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585898305] [2021-02-21 19:30:39,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:30:39,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 19:30:39,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315438584] [2021-02-21 19:30:39,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 19:30:39,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:30:39,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 19:30:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-21 19:30:39,581 INFO L87 Difference]: Start difference. First operand 254 states and 272 transitions. Second operand 10 states. [2021-02-21 19:30:40,419 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:30:40,895 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:30:41,318 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 19:30:41,709 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:30:42,129 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:30:42,521 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:30:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:30:44,577 INFO L93 Difference]: Finished difference Result 450 states and 514 transitions. [2021-02-21 19:30:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 19:30:44,578 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2021-02-21 19:30:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:30:44,585 INFO L225 Difference]: With dead ends: 450 [2021-02-21 19:30:44,585 INFO L226 Difference]: Without dead ends: 311 [2021-02-21 19:30:44,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-21 19:30:44,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-21 19:30:44,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 254. [2021-02-21 19:30:44,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-02-21 19:30:44,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 271 transitions. [2021-02-21 19:30:44,716 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 271 transitions. Word has length 161 [2021-02-21 19:30:44,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:30:44,716 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 271 transitions. [2021-02-21 19:30:44,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 19:30:44,717 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 271 transitions. [2021-02-21 19:30:44,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-02-21 19:30:44,719 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:30:44,719 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] [2021-02-21 19:30:44,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 19:30:44,720 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:30:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:30:44,721 INFO L82 PathProgramCache]: Analyzing trace with hash -113146531, now seen corresponding path program 1 times [2021-02-21 19:30:44,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:30:44,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406657207] [2021-02-21 19:30:44,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:30:44,726 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:30:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:44,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:44,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:44,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:44,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:44,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:44,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:44,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:44,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:44,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:44,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:44,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:44,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,148 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:30:45,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:30:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:45,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:30:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:30:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:30:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:30:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:30:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:30:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:45,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:30:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:45,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:45,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:30:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-21 19:30:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-21 19:30:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:45,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:45,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:30:45,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406657207] [2021-02-21 19:30:45,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:30:45,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 19:30:45,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779215066] [2021-02-21 19:30:45,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 19:30:45,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:30:45,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 19:30:45,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-21 19:30:45,326 INFO L87 Difference]: Start difference. First operand 254 states and 271 transitions. Second operand 7 states. [2021-02-21 19:30:46,132 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:30:48,222 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:49,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:30:49,476 INFO L93 Difference]: Finished difference Result 630 states and 744 transitions. [2021-02-21 19:30:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-21 19:30:49,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2021-02-21 19:30:49,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:30:49,484 INFO L225 Difference]: With dead ends: 630 [2021-02-21 19:30:49,484 INFO L226 Difference]: Without dead ends: 491 [2021-02-21 19:30:49,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-21 19:30:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-02-21 19:30:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 364. [2021-02-21 19:30:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2021-02-21 19:30:49,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 390 transitions. [2021-02-21 19:30:49,687 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 390 transitions. Word has length 174 [2021-02-21 19:30:49,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:30:49,687 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 390 transitions. [2021-02-21 19:30:49,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 19:30:49,687 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 390 transitions. [2021-02-21 19:30:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-21 19:30:49,691 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:30:49,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:30:49,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 19:30:49,692 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:30:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:30:49,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1335545992, now seen corresponding path program 1 times [2021-02-21 19:30:49,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:30:49,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736980996] [2021-02-21 19:30:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:30:49,697 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:30:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:49,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:49,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:49,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:49,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:49,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:49,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:49,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:49,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:49,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:49,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,081 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:30:50,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:30:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:30:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:30:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:30:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:30:50,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:30:50,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:30:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:30:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:30:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:30:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:30:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:50,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:50,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 19:30:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:50,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:50,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 19:30:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-21 19:30:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-21 19:30:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:50,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:50,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:50,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:30:50,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736980996] [2021-02-21 19:30:50,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:30:50,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-21 19:30:50,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456388499] [2021-02-21 19:30:50,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-21 19:30:50,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:30:50,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-21 19:30:50,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-21 19:30:50,436 INFO L87 Difference]: Start difference. First operand 364 states and 390 transitions. Second operand 13 states. [2021-02-21 19:30:51,252 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:30:51,661 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:30:52,072 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:52,480 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:30:52,861 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:53,960 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:54,363 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:30:54,794 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:55,232 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:30:55,613 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:30:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:30:57,410 INFO L93 Difference]: Finished difference Result 745 states and 873 transitions. [2021-02-21 19:30:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 19:30:57,410 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 198 [2021-02-21 19:30:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:30:57,416 INFO L225 Difference]: With dead ends: 745 [2021-02-21 19:30:57,417 INFO L226 Difference]: Without dead ends: 496 [2021-02-21 19:30:57,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-21 19:30:57,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-02-21 19:30:57,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 370. [2021-02-21 19:30:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2021-02-21 19:30:57,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 396 transitions. [2021-02-21 19:30:57,609 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 396 transitions. Word has length 198 [2021-02-21 19:30:57,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:30:57,610 INFO L480 AbstractCegarLoop]: Abstraction has 370 states and 396 transitions. [2021-02-21 19:30:57,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-21 19:30:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 396 transitions. [2021-02-21 19:30:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-21 19:30:57,613 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:30:57,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:30:57,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 19:30:57,615 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:30:57,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:30:57,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1819627480, now seen corresponding path program 1 times [2021-02-21 19:30:57,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:30:57,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698395693] [2021-02-21 19:30:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:30:57,619 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:30:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:57,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:57,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:57,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:57,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:57,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:57,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:57,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:57,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:57,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:57,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:30:57,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:57,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,124 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:30:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:30:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 19:30:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:30:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:30:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:30:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:30:58,226 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 19:30:58,228 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 19:30:58,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:30:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:30:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:30:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:30:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:30:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 19:30:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 19:30:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-21 19:30:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:58,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:30:58,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-21 19:30:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:30:58,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:30:58,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:30:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:30:58,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698395693] [2021-02-21 19:30:58,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:30:58,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-21 19:30:58,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176687410] [2021-02-21 19:30:58,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-21 19:30:58,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:30:58,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-21 19:30:58,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-02-21 19:30:58,424 INFO L87 Difference]: Start difference. First operand 370 states and 396 transitions. Second operand 15 states. [2021-02-21 19:30:59,214 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:30:59,741 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:31:00,157 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:31:00,575 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:31:00,991 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:31:01,385 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:31:02,235 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:31:03,916 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:31:04,323 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:31:04,751 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:31:05,178 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:31:05,579 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 19:31:05,986 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:31:06,381 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:31:06,820 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:31:07,260 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 19:31:07,693 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:31:10,304 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:31:10,705 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:31:11,247 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:31:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:31:12,841 INFO L93 Difference]: Finished difference Result 1289 states and 1617 transitions. [2021-02-21 19:31:12,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-21 19:31:12,842 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 198 [2021-02-21 19:31:12,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:31:12,862 INFO L225 Difference]: With dead ends: 1289 [2021-02-21 19:31:12,862 INFO L226 Difference]: Without dead ends: 1034 [2021-02-21 19:31:12,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2021-02-21 19:31:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-02-21 19:31:13,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 735. [2021-02-21 19:31:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2021-02-21 19:31:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 812 transitions. [2021-02-21 19:31:13,273 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 812 transitions. Word has length 198 [2021-02-21 19:31:13,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:31:13,273 INFO L480 AbstractCegarLoop]: Abstraction has 735 states and 812 transitions. [2021-02-21 19:31:13,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-21 19:31:13,274 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 812 transitions. [2021-02-21 19:31:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-02-21 19:31:13,280 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:31:13,281 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-02-21 19:31:13,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 19:31:13,282 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:31:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:31:13,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2037355814, now seen corresponding path program 1 times [2021-02-21 19:31:13,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:31:13,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929196012] [2021-02-21 19:31:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:31:13,346 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 19:31:13,349 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:31:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,749 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:31:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:31:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:31:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:31:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:31:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:31:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-21 19:31:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-21 19:31:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 19:31:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:31:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:31:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:31:13,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:31:13,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:31:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:31:13,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:31:13,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:31:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 19:31:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 19:31:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-21 19:31:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:31:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-02-21 19:31:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-02-21 19:31:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-02-21 19:31:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-02-21 19:31:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:13,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:13,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:31:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:13,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:14,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 19:31:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:14,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:14,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:14,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-21 19:31:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:14,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:14,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-02-21 19:31:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:14,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:14,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:14,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-02-21 19:31:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:31:14,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:14,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:31:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 19:31:14,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929196012] [2021-02-21 19:31:14,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:31:14,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 19:31:14,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372810761] [2021-02-21 19:31:14,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 19:31:14,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:31:14,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 19:31:14,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-02-21 19:31:14,128 INFO L87 Difference]: Start difference. First operand 735 states and 812 transitions. Second operand 12 states. [2021-02-21 19:31:15,833 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:31:16,229 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:31:16,655 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-21 19:31:17,051 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:31:17,493 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:31:17,865 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:31:19,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:31:19,776 INFO L93 Difference]: Finished difference Result 1485 states and 1757 transitions. [2021-02-21 19:31:19,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 19:31:19,776 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 278 [2021-02-21 19:31:19,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:31:19,784 INFO L225 Difference]: With dead ends: 1485 [2021-02-21 19:31:19,784 INFO L226 Difference]: Without dead ends: 865 [2021-02-21 19:31:19,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-21 19:31:19,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2021-02-21 19:31:20,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 649. [2021-02-21 19:31:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2021-02-21 19:31:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 712 transitions. [2021-02-21 19:31:20,035 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 712 transitions. Word has length 278 [2021-02-21 19:31:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:31:20,036 INFO L480 AbstractCegarLoop]: Abstraction has 649 states and 712 transitions. [2021-02-21 19:31:20,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 19:31:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 712 transitions. [2021-02-21 19:31:20,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-02-21 19:31:20,043 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:31:20,044 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-02-21 19:31:20,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 19:31:20,045 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:31:20,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:31:20,046 INFO L82 PathProgramCache]: Analyzing trace with hash -51794621, now seen corresponding path program 1 times [2021-02-21 19:31:20,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:31:20,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076524584] [2021-02-21 19:31:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:31:20,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:31:20,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1