/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_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 18:49:59,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 18:49:59,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 18:49:59,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 18:49:59,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 18:49:59,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 18:49:59,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 18:49:59,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 18:49:59,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 18:49:59,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 18:49:59,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 18:49:59,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 18:49:59,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 18:49:59,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 18:49:59,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 18:49:59,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 18:49:59,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 18:49:59,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 18:49:59,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 18:49:59,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 18:49:59,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 18:49:59,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 18:49:59,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 18:49:59,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 18:49:59,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 18:49:59,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 18:49:59,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 18:49:59,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 18:49:59,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 18:49:59,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 18:49:59,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 18:49:59,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 18:49:59,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 18:49:59,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 18:49:59,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 18:49:59,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 18:49:59,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 18:49:59,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 18:49:59,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 18:49:59,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 18:49:59,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 18:49:59,218 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 18:49:59,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 18:49:59,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 18:49:59,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 18:49:59,245 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 18:49:59,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 18:49:59,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 18:49:59,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 18:49:59,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 18:49:59,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 18:49:59,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 18:49:59,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 18:49:59,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 18:49:59,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 18:49:59,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 18:49:59,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 18:49:59,248 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 18:49:59,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 18:49:59,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 18:49:59,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 18:49:59,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 18:49:59,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 18:49:59,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 18:49:59,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 18:49:59,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 18:49:59,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 18:49:59,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 18:49:59,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 18:49:59,667 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 18:49:59,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2021-02-21 18:49:59,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91315d175/e794f711b0f040baa71840fd1c5881ac/FLAG917409a7f [2021-02-21 18:50:00,382 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 18:50:00,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2021-02-21 18:50:00,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91315d175/e794f711b0f040baa71840fd1c5881ac/FLAG917409a7f [2021-02-21 18:50:00,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91315d175/e794f711b0f040baa71840fd1c5881ac [2021-02-21 18:50:00,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 18:50:00,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 18:50:00,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 18:50:00,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 18:50:00,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 18:50:00,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:50:00" (1/1) ... [2021-02-21 18:50:00,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d62272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:00, skipping insertion in model container [2021-02-21 18:50:00,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:50:00" (1/1) ... [2021-02-21 18:50:00,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 18:50:00,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 18:50:00,988 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c[4065,4078] [2021-02-21 18:50:01,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:50:01,162 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 18:50:01,194 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c[4065,4078] [2021-02-21 18:50:01,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:50:01,287 INFO L208 MainTranslator]: Completed translation [2021-02-21 18:50:01,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01 WrapperNode [2021-02-21 18:50:01,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 18:50:01,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 18:50:01,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 18:50:01,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 18:50:01,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (1/1) ... [2021-02-21 18:50:01,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 18:50:01,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 18:50:01,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 18:50:01,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 18:50:01,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (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 18:50:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 18:50:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 18:50:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 18:50:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 18:50:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 18:50:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 18:50:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 18:50:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 18:50:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 18:50:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 18:50:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 18:50:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 18:50:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 18:50:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 18:50:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 18:50:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-21 18:50:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 18:50:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-21 18:50:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-21 18:50:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 18:50:01,618 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 18:50:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 18:50:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 18:50:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 18:50:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 18:50:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 18:50:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 18:50:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 18:50:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 18:50:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 18:50:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 18:50:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 18:50:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 18:50:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 18:50:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 18:50:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 18:50:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 18:50:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 18:50:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-21 18:50:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-21 18:50:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 18:50:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 18:50:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 18:50:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 18:50:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 18:50:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 18:50:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 18:50:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 18:50:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 18:50:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 18:50:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 18:50:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 18:50:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 18:50:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-21 18:50:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 18:50:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 18:50:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 18:50:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 18:50:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 18:50:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 18:50:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 18:50:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 18:50:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 18:50:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 18:50:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-21 18:50:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 18:50:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 18:50:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-21 18:50:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 18:50:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 18:50:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 18:50:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 18:50:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 18:50:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 18:50:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 18:50:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 18:50:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 18:50:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 18:50:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 18:50:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 18:50:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 18:50:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 18:50:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 18:50:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 18:50:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-21 18:50:01,633 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 18:50:01,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 18:50:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 18:50:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 18:50:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-21 18:50:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 18:50:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 18:50:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 18:50:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 18:50:03,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 18:50:03,347 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 18:50:03,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:50:03 BoogieIcfgContainer [2021-02-21 18:50:03,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 18:50:03,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 18:50:03,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 18:50:03,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 18:50:03,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 06:50:00" (1/3) ... [2021-02-21 18:50:03,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18943b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:50:03, skipping insertion in model container [2021-02-21 18:50:03,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:50:01" (2/3) ... [2021-02-21 18:50:03,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18943b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:50:03, skipping insertion in model container [2021-02-21 18:50:03,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:50:03" (3/3) ... [2021-02-21 18:50:03,372 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2021-02-21 18:50:03,385 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 18:50:03,391 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 18:50:03,410 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 18:50:03,433 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 18:50:03,433 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 18:50:03,433 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 18:50:03,434 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 18:50:03,434 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 18:50:03,434 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 18:50:03,434 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 18:50:03,434 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 18:50:03,458 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2021-02-21 18:50:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-21 18:50:03,479 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:03,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:50:03,481 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:03,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:03,487 INFO L82 PathProgramCache]: Analyzing trace with hash -744551406, now seen corresponding path program 1 times [2021-02-21 18:50:03,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:03,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836285357] [2021-02-21 18:50:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:03,595 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:03,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:03,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:03,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:03,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,640 WARN L202 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:50:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-21 18:50:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:04,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:04,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:04,840 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 18:50:04,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836285357] [2021-02-21 18:50:04,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:04,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 18:50:04,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503011130] [2021-02-21 18:50:04,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 18:50:04,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:04,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 18:50:04,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:50:04,867 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2021-02-21 18:50:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:06,889 INFO L93 Difference]: Finished difference Result 448 states and 530 transitions. [2021-02-21 18:50:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 18:50:06,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-21 18:50:06,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:06,909 INFO L225 Difference]: With dead ends: 448 [2021-02-21 18:50:06,909 INFO L226 Difference]: Without dead ends: 292 [2021-02-21 18:50:06,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:50:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-21 18:50:07,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 245. [2021-02-21 18:50:07,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-02-21 18:50:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2021-02-21 18:50:07,171 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 153 [2021-02-21 18:50:07,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:07,174 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2021-02-21 18:50:07,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 18:50:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2021-02-21 18:50:07,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-21 18:50:07,189 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:07,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:50:07,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 18:50:07,191 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:07,192 INFO L82 PathProgramCache]: Analyzing trace with hash -789792858, now seen corresponding path program 1 times [2021-02-21 18:50:07,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:07,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397119421] [2021-02-21 18:50:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:07,203 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:07,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:07,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:07,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:07,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:07,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:07,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:07,929 WARN L202 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:07,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:07,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:07,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:07,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:07,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:07,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:07,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:07,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:08,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:08,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:08,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:08,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:08,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:08,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:08,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:08,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:08,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-21 18:50:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:08,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:08,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:08,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 18:50:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:08,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:08,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:08,074 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 18:50:08,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397119421] [2021-02-21 18:50:08,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:08,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 18:50:08,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161515971] [2021-02-21 18:50:08,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 18:50:08,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:08,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 18:50:08,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-21 18:50:08,080 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 5 states. [2021-02-21 18:50:09,322 WARN L202 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:50:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:10,724 INFO L93 Difference]: Finished difference Result 372 states and 420 transitions. [2021-02-21 18:50:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 18:50:10,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-21 18:50:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:10,730 INFO L225 Difference]: With dead ends: 372 [2021-02-21 18:50:10,730 INFO L226 Difference]: Without dead ends: 281 [2021-02-21 18:50:10,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-21 18:50:10,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-21 18:50:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 235. [2021-02-21 18:50:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2021-02-21 18:50:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 251 transitions. [2021-02-21 18:50:10,851 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 251 transitions. Word has length 154 [2021-02-21 18:50:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:10,852 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 251 transitions. [2021-02-21 18:50:10,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 18:50:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 251 transitions. [2021-02-21 18:50:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-21 18:50:10,855 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:10,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:50:10,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 18:50:10,856 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:10,857 INFO L82 PathProgramCache]: Analyzing trace with hash -573358040, now seen corresponding path program 1 times [2021-02-21 18:50:10,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:10,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296088527] [2021-02-21 18:50:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:10,862 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:10,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:10,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:10,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:10,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:10,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:10,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:10,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:10,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:10,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:10,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:50:10,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:10,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,583 WARN L202 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:50:11,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:50:11,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-21 18:50:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:11,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-21 18:50:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-21 18:50:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:11,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:11,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:11,821 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 18:50:11,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296088527] [2021-02-21 18:50:11,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:11,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 18:50:11,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237955172] [2021-02-21 18:50:11,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 18:50:11,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:11,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 18:50:11,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-21 18:50:11,825 INFO L87 Difference]: Start difference. First operand 235 states and 251 transitions. Second operand 11 states. [2021-02-21 18:50:12,871 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:50:13,659 WARN L202 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:50:14,347 WARN L202 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-21 18:50:15,027 WARN L202 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:15,706 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:50:16,421 WARN L202 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:18,805 INFO L93 Difference]: Finished difference Result 419 states and 485 transitions. [2021-02-21 18:50:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 18:50:18,806 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2021-02-21 18:50:18,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:18,810 INFO L225 Difference]: With dead ends: 419 [2021-02-21 18:50:18,810 INFO L226 Difference]: Without dead ends: 304 [2021-02-21 18:50:18,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2021-02-21 18:50:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-02-21 18:50:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 235. [2021-02-21 18:50:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2021-02-21 18:50:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 250 transitions. [2021-02-21 18:50:18,931 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 250 transitions. Word has length 167 [2021-02-21 18:50:18,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:18,932 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 250 transitions. [2021-02-21 18:50:18,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 18:50:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 250 transitions. [2021-02-21 18:50:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-21 18:50:18,935 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:18,935 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] [2021-02-21 18:50:18,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 18:50:18,935 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:18,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1932921929, now seen corresponding path program 1 times [2021-02-21 18:50:18,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:18,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454008311] [2021-02-21 18:50:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:18,940 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,543 WARN L202 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:19,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-21 18:50:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 18:50:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:19,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:50:19,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:50:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-21 18:50:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-21 18:50:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:19,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:19,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:19,749 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 18:50:19,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454008311] [2021-02-21 18:50:19,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:19,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 18:50:19,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277747375] [2021-02-21 18:50:19,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 18:50:19,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:19,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 18:50:19,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 18:50:19,752 INFO L87 Difference]: Start difference. First operand 235 states and 250 transitions. Second operand 8 states. [2021-02-21 18:50:20,797 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:50:23,708 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:50:25,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:25,075 INFO L93 Difference]: Finished difference Result 598 states and 715 transitions. [2021-02-21 18:50:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-21 18:50:25,077 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2021-02-21 18:50:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:25,082 INFO L225 Difference]: With dead ends: 598 [2021-02-21 18:50:25,082 INFO L226 Difference]: Without dead ends: 483 [2021-02-21 18:50:25,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2021-02-21 18:50:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-02-21 18:50:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 342. [2021-02-21 18:50:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2021-02-21 18:50:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 369 transitions. [2021-02-21 18:50:25,232 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 369 transitions. Word has length 175 [2021-02-21 18:50:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:25,232 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 369 transitions. [2021-02-21 18:50:25,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 18:50:25,233 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 369 transitions. [2021-02-21 18:50:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-21 18:50:25,235 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:25,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:25,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 18:50:25,236 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:25,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:25,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1587362231, now seen corresponding path program 1 times [2021-02-21 18:50:25,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:25,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688185886] [2021-02-21 18:50:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:25,240 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:25,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:25,916 WARN L202 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:25,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:25,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:25,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:25,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:25,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:25,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:25,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:25,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:25,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:25,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:25,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:25,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-21 18:50:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 18:50:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:50:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:50:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:50:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-21 18:50:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:26,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:26,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-21 18:50:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:26,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:26,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:26,185 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 18:50:26,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688185886] [2021-02-21 18:50:26,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:26,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 18:50:26,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9304987] [2021-02-21 18:50:26,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 18:50:26,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:26,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 18:50:26,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-21 18:50:26,188 INFO L87 Difference]: Start difference. First operand 342 states and 369 transitions. Second operand 11 states. [2021-02-21 18:50:27,255 WARN L202 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:50:29,918 WARN L202 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:30,629 WARN L202 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:50:31,336 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:32,042 WARN L202 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:50:32,667 WARN L202 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:50:33,325 WARN L202 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:33,986 WARN L202 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:34,904 WARN L202 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:50:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:37,084 INFO L93 Difference]: Finished difference Result 989 states and 1216 transitions. [2021-02-21 18:50:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-21 18:50:37,085 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2021-02-21 18:50:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:37,092 INFO L225 Difference]: With dead ends: 989 [2021-02-21 18:50:37,092 INFO L226 Difference]: Without dead ends: 767 [2021-02-21 18:50:37,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2021-02-21 18:50:37,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-02-21 18:50:37,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 518. [2021-02-21 18:50:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2021-02-21 18:50:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 564 transitions. [2021-02-21 18:50:37,326 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 564 transitions. Word has length 199 [2021-02-21 18:50:37,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:37,327 INFO L480 AbstractCegarLoop]: Abstraction has 518 states and 564 transitions. [2021-02-21 18:50:37,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 18:50:37,327 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 564 transitions. [2021-02-21 18:50:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-02-21 18:50:37,330 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:37,331 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, 1, 1, 1, 1, 1, 1] [2021-02-21 18:50:37,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 18:50:37,331 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:37,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1727075809, now seen corresponding path program 1 times [2021-02-21 18:50:37,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:37,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476380863] [2021-02-21 18:50:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:37,335 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:37,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:37,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:37,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,026 WARN L202 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:38,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:38,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:50:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 18:50:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:50:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:38,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:50:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:50:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:50:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-21 18:50:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-02-21 18:50:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:38,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:38,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:38,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:38,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:38,314 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 18:50:38,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476380863] [2021-02-21 18:50:38,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:38,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 18:50:38,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269225771] [2021-02-21 18:50:38,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 18:50:38,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:38,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 18:50:38,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-21 18:50:38,316 INFO L87 Difference]: Start difference. First operand 518 states and 564 transitions. Second operand 12 states. [2021-02-21 18:50:39,400 WARN L202 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:50:42,268 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:42,907 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:50:43,585 WARN L202 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:50:44,242 WARN L202 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:45,061 WARN L202 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:45,823 WARN L202 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:50:46,501 WARN L202 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:47,213 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:50:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:49,200 INFO L93 Difference]: Finished difference Result 1295 states and 1574 transitions. [2021-02-21 18:50:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-21 18:50:49,201 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 204 [2021-02-21 18:50:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:49,208 INFO L225 Difference]: With dead ends: 1295 [2021-02-21 18:50:49,208 INFO L226 Difference]: Without dead ends: 897 [2021-02-21 18:50:49,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=434, Invalid=1206, Unknown=0, NotChecked=0, Total=1640 [2021-02-21 18:50:49,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-02-21 18:50:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 516. [2021-02-21 18:50:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2021-02-21 18:50:49,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 560 transitions. [2021-02-21 18:50:49,446 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 560 transitions. Word has length 204 [2021-02-21 18:50:49,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:49,446 INFO L480 AbstractCegarLoop]: Abstraction has 516 states and 560 transitions. [2021-02-21 18:50:49,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 18:50:49,447 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 560 transitions. [2021-02-21 18:50:49,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-21 18:50:49,450 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:49,450 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:50:49,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 18:50:49,451 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:49,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:49,451 INFO L82 PathProgramCache]: Analyzing trace with hash -234310238, now seen corresponding path program 1 times [2021-02-21 18:50:49,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:49,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504819715] [2021-02-21 18:50:49,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:49,455 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:49,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:49,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:49,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:49,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,060 WARN L202 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:50:50,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:50:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:50:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:50:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:50:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:50:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:50:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:50:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 18:50:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:50:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:50,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:50,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:50:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:50:50,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:50:50,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:50:50,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:50:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:50:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-21 18:50:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 18:50:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:50,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:50,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:50,334 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 18:50:50,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504819715] [2021-02-21 18:50:50,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:50:50,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 18:50:50,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540166079] [2021-02-21 18:50:50,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 18:50:50,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:50:50,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 18:50:50,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-21 18:50:50,337 INFO L87 Difference]: Start difference. First operand 516 states and 560 transitions. Second operand 12 states. [2021-02-21 18:50:52,583 WARN L202 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:50:53,239 WARN L202 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-21 18:50:53,965 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-21 18:50:54,649 WARN L202 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:50:55,353 WARN L202 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:50:55,994 WARN L202 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:50:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:50:59,077 INFO L93 Difference]: Finished difference Result 1303 states and 1596 transitions. [2021-02-21 18:50:59,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-21 18:50:59,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 205 [2021-02-21 18:50:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:50:59,085 INFO L225 Difference]: With dead ends: 1303 [2021-02-21 18:50:59,085 INFO L226 Difference]: Without dead ends: 907 [2021-02-21 18:50:59,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2021-02-21 18:50:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-02-21 18:50:59,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 532. [2021-02-21 18:50:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-02-21 18:50:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 576 transitions. [2021-02-21 18:50:59,433 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 576 transitions. Word has length 205 [2021-02-21 18:50:59,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:50:59,434 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 576 transitions. [2021-02-21 18:50:59,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 18:50:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 576 transitions. [2021-02-21 18:50:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-21 18:50:59,437 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:50:59,437 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:50:59,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 18:50:59,437 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:50:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:50:59,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1374104062, now seen corresponding path program 1 times [2021-02-21 18:50:59,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:50:59,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531245492] [2021-02-21 18:50:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:50:59,444 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:50:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:50:59,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:59,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:59,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:59,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:59,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:59,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:50:59,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:59,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:50:59,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:50:59,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,108 WARN L202 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:51:00,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:51:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:51:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:51:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:51:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:51:00,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:51:00,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:51:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:51:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:51:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 18:51:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:51:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:51:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:00,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:00,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:51:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:00,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:00,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:51:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-21 18:51:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 18:51:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:00,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:00,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:00,457 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 18:51:00,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531245492] [2021-02-21 18:51:00,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:51:00,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-21 18:51:00,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500486328] [2021-02-21 18:51:00,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-21 18:51:00,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:51:00,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-21 18:51:00,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-02-21 18:51:00,459 INFO L87 Difference]: Start difference. First operand 532 states and 576 transitions. Second operand 15 states. [2021-02-21 18:51:01,673 WARN L202 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:51:02,373 WARN L202 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-21 18:51:03,057 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:51:03,709 WARN L202 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:51:04,365 WARN L202 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:51:06,124 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:51:06,797 WARN L202 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:51:07,500 WARN L202 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:51:08,205 WARN L202 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:51:08,868 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:51:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:51:12,328 INFO L93 Difference]: Finished difference Result 1341 states and 1661 transitions. [2021-02-21 18:51:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-21 18:51:12,331 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 205 [2021-02-21 18:51:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:51:12,338 INFO L225 Difference]: With dead ends: 1341 [2021-02-21 18:51:12,339 INFO L226 Difference]: Without dead ends: 929 [2021-02-21 18:51:12,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2021-02-21 18:51:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-02-21 18:51:12,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 544. [2021-02-21 18:51:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2021-02-21 18:51:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 588 transitions. [2021-02-21 18:51:12,563 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 588 transitions. Word has length 205 [2021-02-21 18:51:12,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:51:12,563 INFO L480 AbstractCegarLoop]: Abstraction has 544 states and 588 transitions. [2021-02-21 18:51:12,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-21 18:51:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 588 transitions. [2021-02-21 18:51:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-21 18:51:12,565 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:51:12,566 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:51:12,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 18:51:12,566 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:51:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:51:12,567 INFO L82 PathProgramCache]: Analyzing trace with hash 789740543, now seen corresponding path program 1 times [2021-02-21 18:51:12,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:51:12,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367768152] [2021-02-21 18:51:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:51:12,570 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:51:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:12,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:12,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:12,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:12,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:12,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:12,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:12,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:12,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:12,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:12,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:51:12,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:12,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,198 WARN L202 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:51:13,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:51:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:51:13,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:51:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:51:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:51:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:51:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:51:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:51:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 18:51:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:51:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:13,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:51:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:51:13,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:51:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:51:13,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:51:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-21 18:51:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 18:51:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:13,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:13,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:13,469 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 18:51:13,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367768152] [2021-02-21 18:51:13,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:51:13,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:51:13,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362863115] [2021-02-21 18:51:13,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:51:13,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:51:13,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:51:13,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:51:13,472 INFO L87 Difference]: Start difference. First operand 544 states and 588 transitions. Second operand 9 states. [2021-02-21 18:51:14,555 WARN L202 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:51:15,797 WARN L202 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:51:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:51:22,301 INFO L93 Difference]: Finished difference Result 2030 states and 2577 transitions. [2021-02-21 18:51:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-21 18:51:22,302 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2021-02-21 18:51:22,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:51:22,313 INFO L225 Difference]: With dead ends: 2030 [2021-02-21 18:51:22,313 INFO L226 Difference]: Without dead ends: 1606 [2021-02-21 18:51:22,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2021-02-21 18:51:22,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-02-21 18:51:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 962. [2021-02-21 18:51:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2021-02-21 18:51:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1068 transitions. [2021-02-21 18:51:22,814 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1068 transitions. Word has length 205 [2021-02-21 18:51:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:51:22,815 INFO L480 AbstractCegarLoop]: Abstraction has 962 states and 1068 transitions. [2021-02-21 18:51:22,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:51:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1068 transitions. [2021-02-21 18:51:22,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-21 18:51:22,818 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:51:22,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:51:22,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 18:51:22,818 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:51:22,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:51:22,819 INFO L82 PathProgramCache]: Analyzing trace with hash 345442833, now seen corresponding path program 1 times [2021-02-21 18:51:22,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:51:22,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363906833] [2021-02-21 18:51:22,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:51:22,822 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:51:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:22,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:22,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:22,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:22,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:22,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:22,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:22,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:22,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:22,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:22,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:22,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:22,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,493 WARN L202 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:51:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:51:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:51:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:51:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:51:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:51:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:51:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:51:23,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 18:51:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 18:51:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-21 18:51:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-02-21 18:51:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:51:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:51:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:51:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-21 18:51:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-02-21 18:51:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:51:23,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:23,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:23,736 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 18:51:23,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363906833] [2021-02-21 18:51:23,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:51:23,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:51:23,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603863025] [2021-02-21 18:51:23,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:51:23,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:51:23,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:51:23,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:51:23,738 INFO L87 Difference]: Start difference. First operand 962 states and 1068 transitions. Second operand 9 states. [2021-02-21 18:51:24,812 WARN L202 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:51:31,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:51:31,315 INFO L93 Difference]: Finished difference Result 2472 states and 3164 transitions. [2021-02-21 18:51:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-21 18:51:31,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2021-02-21 18:51:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:51:31,330 INFO L225 Difference]: With dead ends: 2472 [2021-02-21 18:51:31,330 INFO L226 Difference]: Without dead ends: 2469 [2021-02-21 18:51:31,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 18:51:31,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2021-02-21 18:51:32,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 1481. [2021-02-21 18:51:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2021-02-21 18:51:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1660 transitions. [2021-02-21 18:51:32,207 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1660 transitions. Word has length 210 [2021-02-21 18:51:32,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:51:32,207 INFO L480 AbstractCegarLoop]: Abstraction has 1481 states and 1660 transitions. [2021-02-21 18:51:32,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:51:32,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1660 transitions. [2021-02-21 18:51:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-02-21 18:51:32,212 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:51:32,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:51:32,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 18:51:32,213 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:51:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:51:32,214 INFO L82 PathProgramCache]: Analyzing trace with hash -232438301, now seen corresponding path program 1 times [2021-02-21 18:51:32,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:51:32,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001377287] [2021-02-21 18:51:32,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:51:32,338 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-02-21 18:51:32,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:32,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:32,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:32,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:32,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:32,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:32,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:32,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:32,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:32,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:32,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:32,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:33,006 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-21 18:51:33,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-21 18:51:33,512 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-21 18:51:33,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-21 18:51:33,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:33,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:33,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:33,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:33,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:33,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:33,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,136 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-21 18:51:34,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-21 18:51:34,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:34,960 WARN L202 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-21 18:51:34,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:34,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-21 18:51:35,480 WARN L202 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-21 18:51:35,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-21 18:51:35,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:35,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:35,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:36,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:36,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:36,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:36,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:36,506 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-21 18:51:36,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:36,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-21 18:51:37,057 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-21 18:51:37,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-21 18:51:37,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:51:37,760 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-21 18:51:37,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:51:37,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-21 18:51:37,767 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 18:51:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:51:38,156 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:51:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:51:38,290 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:51:38,668 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 18:51:38,668 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 18:51:38,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 18:51:38,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 06:51:38 BoogieIcfgContainer [2021-02-21 18:51:38,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 18:51:38,698 INFO L168 Benchmark]: Toolchain (without parser) took 98019.75 ms. Allocated memory was 151.0 MB in the beginning and 699.4 MB in the end (delta: 548.4 MB). Free memory was 126.9 MB in the beginning and 358.6 MB in the end (delta: -231.7 MB). Peak memory consumption was 317.5 MB. Max. memory is 8.0 GB. [2021-02-21 18:51:38,698 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 18:51:38,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 105.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-21 18:51:38,698 INFO L168 Benchmark]: Boogie Preprocessor took 159.52 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 133.0 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. [2021-02-21 18:51:38,698 INFO L168 Benchmark]: RCFGBuilder took 1900.68 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 90.2 MB in the end (delta: 42.8 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. [2021-02-21 18:51:38,699 INFO L168 Benchmark]: TraceAbstraction took 95333.52 ms. Allocated memory was 151.0 MB in the beginning and 699.4 MB in the end (delta: 548.4 MB). Free memory was 90.2 MB in the beginning and 358.6 MB in the end (delta: -268.4 MB). Peak memory consumption was 280.0 MB. Max. memory is 8.0 GB. [2021-02-21 18:51:38,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 593.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 105.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 159.52 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 133.0 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1900.68 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 90.2 MB in the end (delta: 42.8 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 95333.52 ms. Allocated memory was 151.0 MB in the beginning and 699.4 MB in the end (delta: 548.4 MB). Free memory was 90.2 MB in the beginning and 358.6 MB in the end (delta: -268.4 MB). Peak memory consumption was 280.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 251]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L153] int waterLevel = 1; [L154] int methaneLevelCritical = 0; [L257] int methAndRunningLastTime ; [L500] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L767] int pumpRunning = 0; [L768] int systemActive = 1; [L125] int retValue_acc ; [L126] int tmp ; [L130] FCALL select_helpers() [L131] FCALL select_features() [L132] CALL, EXPR valid_product() [L322] int retValue_acc ; [L325] retValue_acc = 1 [L326] return (retValue_acc); [L132] RET, EXPR valid_product() [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L136] FCALL setup() [L137] CALL runTest() [L115] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 [L115] RET __utac_acc__Specification2_spec__1() [L116] CALL test() [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) [L720] CALL waterRise() [L171] COND TRUE waterLevel < 2 [L172] waterLevel = waterLevel + 1 [L720] RET waterRise() [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) [L730] CALL changeMethaneLevel() [L183] COND FALSE !(\read(methaneLevelCritical)) [L186] methaneLevelCritical = 1 [L730] RET changeMethaneLevel() [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L740] CALL startSystem() [L922] systemActive = 1 [L740] RET startSystem() [L753] CALL timeShift() [L774] COND FALSE !(\read(pumpRunning)) [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND TRUE ! pumpRunning [L808] CALL, EXPR isHighWaterLevel() [L900] int retValue_acc ; [L901] int tmp ; [L902] int tmp___0 ; [L906] CALL, EXPR isHighWaterSensorDry() [L233] int retValue_acc ; [L236] COND FALSE !(waterLevel < 2) [L240] retValue_acc = 0 [L241] return (retValue_acc); [L906] RET, EXPR isHighWaterSensorDry() [L906] tmp = isHighWaterSensorDry() [L908] COND FALSE !(\read(tmp)) [L911] tmp___0 = 1 [L913] retValue_acc = tmp___0 [L914] return (retValue_acc); [L808] RET, EXPR isHighWaterLevel() [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) [L812] CALL activatePump() [L831] pumpRunning = 1 [L812] RET activatePump() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L276] CALL, EXPR isPumpRunning() [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); [L276] RET, EXPR isPumpRunning() [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) [L279] COND FALSE !(\read(methAndRunningLastTime)) [L284] methAndRunningLastTime = 1 [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L740] CALL startSystem() [L922] systemActive = 1 [L740] RET startSystem() [L753] CALL timeShift() [L774] COND TRUE \read(pumpRunning) [L776] CALL lowerWaterLevel() [L159] COND TRUE waterLevel > 0 [L160] waterLevel = waterLevel - 1 [L776] RET lowerWaterLevel() [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND FALSE !(! pumpRunning) [L821] FCALL processEnvironment__wrappee__base() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L276] CALL, EXPR isPumpRunning() [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); [L276] RET, EXPR isPumpRunning() [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) [L279] COND TRUE \read(methAndRunningLastTime) [L281] CALL __automaton_fail() [L251] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 95.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 75.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2333 SDtfs, 8595 SDslu, 5103 SDs, 0 SdLazy, 9770 SolverSat, 2446 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 542 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1724 ImplicationChecksByTransitivity, 39.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1481occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 3325 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...