/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_spec3_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:25:18,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:25:18,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:25:18,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:25:18,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:25:18,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:25:18,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:25:18,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:25:18,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:25:18,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:25:18,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:25:18,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:25:18,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:25:18,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:25:18,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:25:18,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:25:18,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:25:18,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:25:18,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:25:18,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:25:18,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:25:18,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:25:18,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:25:18,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:25:18,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:25:18,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:25:18,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:25:18,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:25:18,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:25:18,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:25:18,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:25:18,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:25:18,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:25:18,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:25:18,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:25:18,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:25:18,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:25:18,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:25:18,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:25:18,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:25:18,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:25:18,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:25:18,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:25:18,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:25:18,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:25:18,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:25:18,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:25:18,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:25:18,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:25:18,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:25:18,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:25:18,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:25:18,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:25:18,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:25:18,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:25:18,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:25:18,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:25:18,736 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:25:18,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:25:18,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:25:18,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:25:18,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:25:18,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:25:18,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:25:18,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:25:19,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:25:19,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:25:19,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:25:19,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:25:19,158 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:25:19,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2021-02-23 16:25:19,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5424fbd5/4970bdb9e6984e6f8802bac3a640bfcb/FLAGcf681d240 [2021-02-23 16:25:19,956 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:25:19,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2021-02-23 16:25:19,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5424fbd5/4970bdb9e6984e6f8802bac3a640bfcb/FLAGcf681d240 [2021-02-23 16:25:20,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5424fbd5/4970bdb9e6984e6f8802bac3a640bfcb [2021-02-23 16:25:20,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:25:20,228 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:25:20,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:25:20,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:25:20,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:25:20,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:20,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50392859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20, skipping insertion in model container [2021-02-23 16:25:20,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:20,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:25:20,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:25:20,548 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_spec3_product39.cil.c[6762,6775] [2021-02-23 16:25:20,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:25:20,687 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:25:20,745 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_spec3_product39.cil.c[6762,6775] [2021-02-23 16:25:20,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:25:20,840 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:25:20,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20 WrapperNode [2021-02-23 16:25:20,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:25:20,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:25:20,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:25:20,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:25:20,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:20,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:20,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:20,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:20,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:21,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:21,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (1/1) ... [2021-02-23 16:25:21,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:25:21,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:25:21,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:25:21,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:25:21,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (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 [2021-02-23 16:25:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:25:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:25:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:25:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:25:21,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:25:21,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:25:21,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:25:21,120 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:25:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:25:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:25:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:25:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:25:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:25:21,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:25:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 16:25:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:25:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:25:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 16:25:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:25:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:25:21,130 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:25:21,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:25:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:25:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:25:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 16:25:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 16:25:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:25:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:25:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:25:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:25:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:25:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:25:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:25:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:25:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:25:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:25:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 16:25:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:25:21,144 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:25:21,144 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:25:21,144 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:25:21,144 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:25:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:25:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:25:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:25:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:25:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:25:21,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:25:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:25:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:25:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:25:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:25:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:25:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:25:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:25:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:25:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:25:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:25:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:25:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:25:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:25:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:25:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:25:22,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:25:22,529 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:25:22,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:25:22 BoogieIcfgContainer [2021-02-23 16:25:22,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:25:22,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:25:22,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:25:22,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:25:22,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:25:20" (1/3) ... [2021-02-23 16:25:22,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1b6bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:25:22, skipping insertion in model container [2021-02-23 16:25:22,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:20" (2/3) ... [2021-02-23 16:25:22,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1b6bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:25:22, skipping insertion in model container [2021-02-23 16:25:22,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:25:22" (3/3) ... [2021-02-23 16:25:22,542 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2021-02-23 16:25:22,550 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:25:22,556 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:25:22,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:25:22,603 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:25:22,603 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:25:22,603 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:25:22,603 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:25:22,604 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:25:22,604 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:25:22,604 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:25:22,604 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:25:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2021-02-23 16:25:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 16:25:22,652 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:22,653 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] [2021-02-23 16:25:22,653 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:22,660 INFO L82 PathProgramCache]: Analyzing trace with hash 2061283849, now seen corresponding path program 1 times [2021-02-23 16:25:22,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:22,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073101017] [2021-02-23 16:25:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:22,749 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,481 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:23,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:25:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:25:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:25:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:23,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:23,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:23,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073101017] [2021-02-23 16:25:23,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:23,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:25:23,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956942683] [2021-02-23 16:25:23,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:25:23,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:23,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:25:23,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:25:23,719 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2021-02-23 16:25:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:25,420 INFO L93 Difference]: Finished difference Result 509 states and 607 transitions. [2021-02-23 16:25:25,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:25:25,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 16:25:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:25,440 INFO L225 Difference]: With dead ends: 509 [2021-02-23 16:25:25,440 INFO L226 Difference]: Without dead ends: 315 [2021-02-23 16:25:25,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:25:25,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-23 16:25:25,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 272. [2021-02-23 16:25:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-02-23 16:25:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 297 transitions. [2021-02-23 16:25:25,682 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 297 transitions. Word has length 158 [2021-02-23 16:25:25,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:25,685 INFO L480 AbstractCegarLoop]: Abstraction has 272 states and 297 transitions. [2021-02-23 16:25:25,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:25:25,686 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 297 transitions. [2021-02-23 16:25:25,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 16:25:25,698 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:25,699 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] [2021-02-23 16:25:25,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:25:25,699 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:25,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1031154912, now seen corresponding path program 1 times [2021-02-23 16:25:25,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:25,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567198712] [2021-02-23 16:25:25,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:25,709 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:25,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:25,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:25,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:25,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:25,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:25,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,146 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:26,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 16:25:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:25:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:25:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:26,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567198712] [2021-02-23 16:25:26,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:26,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:25:26,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052639914] [2021-02-23 16:25:26,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:25:26,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:26,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:25:26,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:25:26,264 INFO L87 Difference]: Start difference. First operand 272 states and 297 transitions. Second operand 4 states. [2021-02-23 16:25:26,934 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:25:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:28,025 INFO L93 Difference]: Finished difference Result 419 states and 473 transitions. [2021-02-23 16:25:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:25:28,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 16:25:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:28,030 INFO L225 Difference]: With dead ends: 419 [2021-02-23 16:25:28,031 INFO L226 Difference]: Without dead ends: 298 [2021-02-23 16:25:28,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:25:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-02-23 16:25:28,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 262. [2021-02-23 16:25:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-02-23 16:25:28,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2021-02-23 16:25:28,150 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 159 [2021-02-23 16:25:28,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:28,150 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2021-02-23 16:25:28,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:25:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2021-02-23 16:25:28,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-23 16:25:28,154 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:28,154 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] [2021-02-23 16:25:28,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:25:28,155 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:28,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:28,155 INFO L82 PathProgramCache]: Analyzing trace with hash -342735753, now seen corresponding path program 1 times [2021-02-23 16:25:28,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:28,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475604590] [2021-02-23 16:25:28,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:28,159 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:28,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:28,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:28,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:28,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:25:28,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:25:28,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:25:28,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,677 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:28,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:25:28,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:25:28,876 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 16:25:28,880 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 16:25:28,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:25:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:25:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-23 16:25:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:28,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:28,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:28,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475604590] [2021-02-23 16:25:28,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:28,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:25:28,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408794692] [2021-02-23 16:25:28,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:25:28,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:28,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:25:28,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:25:28,992 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 9 states. [2021-02-23 16:25:29,520 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:29,825 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:25:30,107 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:25:30,421 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:30,739 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:31,055 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:31,994 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:25:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:34,178 INFO L93 Difference]: Finished difference Result 698 states and 805 transitions. [2021-02-23 16:25:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 16:25:34,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-23 16:25:34,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:34,184 INFO L225 Difference]: With dead ends: 698 [2021-02-23 16:25:34,185 INFO L226 Difference]: Without dead ends: 551 [2021-02-23 16:25:34,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-23 16:25:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-02-23 16:25:34,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 484. [2021-02-23 16:25:34,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2021-02-23 16:25:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 543 transitions. [2021-02-23 16:25:34,490 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 543 transitions. Word has length 168 [2021-02-23 16:25:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:34,490 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 543 transitions. [2021-02-23 16:25:34,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:25:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 543 transitions. [2021-02-23 16:25:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 16:25:34,494 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:34,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:25:34,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:25:34,495 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash 222064517, now seen corresponding path program 1 times [2021-02-23 16:25:34,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:34,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193685284] [2021-02-23 16:25:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:34,500 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,813 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:34,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:25:34,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 16:25:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 16:25:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 16:25:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:34,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:34,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 16:25:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:34,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:34,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:35,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193685284] [2021-02-23 16:25:35,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:35,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:25:35,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159594470] [2021-02-23 16:25:35,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:25:35,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:35,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:25:35,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:25:35,012 INFO L87 Difference]: Start difference. First operand 484 states and 543 transitions. Second operand 9 states. [2021-02-23 16:25:35,542 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:37,443 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:37,768 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:38,115 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:38,468 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:38,748 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:39,092 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:39,415 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:40,306 INFO L93 Difference]: Finished difference Result 1301 states and 1572 transitions. [2021-02-23 16:25:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 16:25:40,308 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 16:25:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:40,316 INFO L225 Difference]: With dead ends: 1301 [2021-02-23 16:25:40,316 INFO L226 Difference]: Without dead ends: 932 [2021-02-23 16:25:40,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 16:25:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2021-02-23 16:25:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 832. [2021-02-23 16:25:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2021-02-23 16:25:40,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 958 transitions. [2021-02-23 16:25:40,723 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 958 transitions. Word has length 177 [2021-02-23 16:25:40,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:40,724 INFO L480 AbstractCegarLoop]: Abstraction has 832 states and 958 transitions. [2021-02-23 16:25:40,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:25:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 958 transitions. [2021-02-23 16:25:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 16:25:40,730 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:40,730 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] [2021-02-23 16:25:40,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:25:40,731 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:40,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:40,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1973943740, now seen corresponding path program 1 times [2021-02-23 16:25:40,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:40,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427085864] [2021-02-23 16:25:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:40,735 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:25:40,816 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:25:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:25:40,891 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:25:41,089 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:25:41,090 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:25:41,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:25:41,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:25:41 BoogieIcfgContainer [2021-02-23 16:25:41,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:25:41,116 INFO L168 Benchmark]: Toolchain (without parser) took 20900.49 ms. Allocated memory was 151.0 MB in the beginning and 487.6 MB in the end (delta: 336.6 MB). Free memory was 127.2 MB in the beginning and 371.0 MB in the end (delta: -243.7 MB). Peak memory consumption was 94.1 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:41,117 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:25:41,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.96 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 105.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:41,118 INFO L168 Benchmark]: Boogie Preprocessor took 174.91 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 132.5 MB in the end (delta: -27.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:41,118 INFO L168 Benchmark]: RCFGBuilder took 1514.65 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 75.2 MB in the end (delta: 57.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:41,119 INFO L168 Benchmark]: TraceAbstraction took 18581.12 ms. Allocated memory was 151.0 MB in the beginning and 487.6 MB in the end (delta: 336.6 MB). Free memory was 74.7 MB in the beginning and 371.0 MB in the end (delta: -296.3 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:41,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 608.96 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 105.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 174.91 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 132.5 MB in the end (delta: -27.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1514.65 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 75.2 MB in the end (delta: 57.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18581.12 ms. Allocated memory was 151.0 MB in the beginning and 487.6 MB in the end (delta: 336.6 MB). Free memory was 74.7 MB in the beginning and 371.0 MB in the end (delta: -296.3 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 453]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L627] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int cleanupTimeShifts = 4; [L897] int retValue_acc ; [L898] int tmp ; [L902] FCALL select_helpers() [L903] FCALL select_features() [L904] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L904] RET, EXPR valid_product() [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L908] FCALL setup() [L909] CALL runTest() [L891] CALL test() [L383] int splverifierCounter ; [L384] int tmp ; [L385] int tmp___0 ; [L386] int tmp___1 ; [L387] int tmp___2 ; [L390] splverifierCounter = 0 [L392] COND TRUE 1 [L394] COND TRUE splverifierCounter < 4 [L400] tmp = __VERIFIER_nondet_int() [L402] COND TRUE \read(tmp) [L404] CALL waterRise() [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 [L404] RET waterRise() [L410] tmp___0 = __VERIFIER_nondet_int() [L412] COND FALSE !(\read(tmp___0)) [L420] tmp___2 = __VERIFIER_nondet_int() [L422] COND FALSE !(\read(tmp___2)) [L426] tmp___1 = __VERIFIER_nondet_int() [L428] COND TRUE \read(tmp___1) [L430] CALL stopSystem() [L369] COND FALSE !(\read(pumpRunning)) [L376] systemActive = 0 [L430] RET stopSystem() [L437] CALL timeShift() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND FALSE !(\read(systemActive)) [L210] CALL __utac_acc__Specification3_spec__1() [L921] int tmp ; [L922] int tmp___0 ; [L923] int tmp___1 ; [L927] CALL, EXPR isMethaneLevelCritical() [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); [L927] RET, EXPR isMethaneLevelCritical() [L927] tmp = isMethaneLevelCritical() [L929] COND FALSE !(\read(tmp)) [L933] CALL, EXPR getWaterLevel() [L158] int retValue_acc ; [L161] retValue_acc = waterLevel [L162] return (retValue_acc); [L933] RET, EXPR getWaterLevel() [L933] tmp___0 = getWaterLevel() [L935] COND TRUE tmp___0 == 2 [L937] CALL, EXPR isPumpRunning() [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); [L937] RET, EXPR isPumpRunning() [L937] tmp___1 = isPumpRunning() [L939] COND FALSE !(\read(tmp___1)) [L943] CALL __automaton_fail() [L453] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1041 SDtfs, 1416 SDslu, 1329 SDs, 0 SdLazy, 3265 SolverSat, 481 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=832occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 246 StatesRemovedByMinimization, 4 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...