/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:38:39,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:38:39,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:38:39,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:38:39,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:38:39,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:38:39,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:38:39,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:38:39,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:38:39,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:38:39,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:38:39,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:38:39,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:38:39,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:38:39,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:38:39,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:38:39,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:38:39,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:38:39,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:38:39,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:38:39,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:38:39,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:38:39,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:38:39,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:38:39,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:38:39,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:38:39,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:38:39,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:38:39,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:38:39,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:38:39,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:38:39,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:38:39,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:38:39,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:38:39,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:38:39,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:38:39,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:38:39,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:38:39,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:38:39,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:38:39,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:38:39,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:38:39,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:38:39,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:38:39,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:38:39,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:38:39,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:38:39,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:38:39,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:38:39,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:38:39,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:38:39,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:38:39,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:38:39,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:38:39,179 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:38:39,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:38:39,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:38:39,179 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:38:39,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:38:39,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:38:39,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:38:39,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:38:39,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:38:39,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:38:39,181 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:38:39,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:38:39,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:38:39,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:38:39,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:38:39,470 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:38:39,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-07-07 12:38:39,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada47102b/791414ce17f84e09b8cba39fe8b87c75/FLAGb7b2e8b27 [2020-07-07 12:38:39,993 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:38:39,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-07-07 12:38:40,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada47102b/791414ce17f84e09b8cba39fe8b87c75/FLAGb7b2e8b27 [2020-07-07 12:38:40,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada47102b/791414ce17f84e09b8cba39fe8b87c75 [2020-07-07 12:38:40,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:38:40,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:38:40,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:38:40,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:38:40,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:38:40,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:40,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f05fc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40, skipping insertion in model container [2020-07-07 12:38:40,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:40,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:38:40,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:38:40,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:38:40,701 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:38:40,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:38:40,977 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:38:40,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40 WrapperNode [2020-07-07 12:38:40,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:38:40,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:38:40,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:38:40,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:38:40,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:40,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:41,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:41,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:41,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:41,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:41,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (1/1) ... [2020-07-07 12:38:41,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:38:41,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:38:41,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:38:41,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:38:41,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (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 [2020-07-07 12:38:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:38:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:38:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:38:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:38:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 12:38:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:38:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:38:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:38:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:38:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:38:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:38:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:38:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:38:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:38:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:38:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:38:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:38:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:38:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:38:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:38:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:38:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:38:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:38:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:38:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:38:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:38:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:38:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:38:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:38:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:38:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:38:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:38:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:38:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:38:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:38:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:38:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:38:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:38:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:38:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:38:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:38:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:38:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:38:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:38:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 12:38:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:38:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:38:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:38:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:38:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:38:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:38:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:38:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:38:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:38:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:38:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:38:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:38:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:38:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:38:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:38:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:38:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:38:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:38:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:38:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:38:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:38:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:38:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:38:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:38:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:38:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:38:42,580 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:38:42,581 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:38:42,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:38:42 BoogieIcfgContainer [2020-07-07 12:38:42,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:38:42,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:38:42,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:38:42,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:38:42,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:38:40" (1/3) ... [2020-07-07 12:38:42,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3babc4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:38:42, skipping insertion in model container [2020-07-07 12:38:42,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:38:40" (2/3) ... [2020-07-07 12:38:42,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3babc4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:38:42, skipping insertion in model container [2020-07-07 12:38:42,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:38:42" (3/3) ... [2020-07-07 12:38:42,597 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-07-07 12:38:42,608 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:38:42,617 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:38:42,632 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:38:42,654 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:38:42,655 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:38:42,655 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:38:42,655 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:38:42,655 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:38:42,656 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:38:42,656 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:38:42,656 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:38:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-07-07 12:38:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-07 12:38:42,694 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:38:42,696 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] [2020-07-07 12:38:42,696 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:38:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:38:42,703 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-07-07 12:38:42,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:38:42,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95903635] [2020-07-07 12:38:42,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:38:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,512 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:38:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:38:43,737 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:38:43,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95903635] [2020-07-07 12:38:43,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:38:43,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:38:43,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121429941] [2020-07-07 12:38:43,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:38:43,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:38:43,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:38:43,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:38:43,771 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 3 states. [2020-07-07 12:38:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:38:45,296 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-07-07 12:38:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:38:45,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-07 12:38:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:38:45,316 INFO L225 Difference]: With dead ends: 439 [2020-07-07 12:38:45,317 INFO L226 Difference]: Without dead ends: 277 [2020-07-07 12:38:45,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:38:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-07-07 12:38:45,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-07-07 12:38:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-07 12:38:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-07-07 12:38:45,440 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-07-07 12:38:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:38:45,441 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-07-07 12:38:45,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:38:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-07-07 12:38:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 12:38:45,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:38:45,446 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] [2020-07-07 12:38:45,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:38:45,447 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:38:45,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:38:45,448 INFO L82 PathProgramCache]: Analyzing trace with hash 730102889, now seen corresponding path program 1 times [2020-07-07 12:38:45,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:38:45,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335420154] [2020-07-07 12:38:45,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:38:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:45,939 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:38:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:38:46,036 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:38:46,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335420154] [2020-07-07 12:38:46,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:38:46,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:38:46,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908503351] [2020-07-07 12:38:46,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:38:46,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:38:46,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:38:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:38:46,039 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-07-07 12:38:46,768 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:38:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:38:47,611 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-07-07 12:38:47,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:38:47,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-07 12:38:47,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:38:47,617 INFO L225 Difference]: With dead ends: 347 [2020-07-07 12:38:47,617 INFO L226 Difference]: Without dead ends: 260 [2020-07-07 12:38:47,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:38:47,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-07 12:38:47,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-07-07 12:38:47,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-07 12:38:47,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-07-07 12:38:47,719 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-07-07 12:38:47,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:38:47,720 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-07-07 12:38:47,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:38:47,720 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-07-07 12:38:47,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-07 12:38:47,722 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:38:47,723 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] [2020-07-07 12:38:47,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:38:47,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:38:47,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:38:47,724 INFO L82 PathProgramCache]: Analyzing trace with hash 807408229, now seen corresponding path program 1 times [2020-07-07 12:38:47,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:38:47,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636795] [2020-07-07 12:38:47,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:38:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,132 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:38:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:38:48,284 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:38:48,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636795] [2020-07-07 12:38:48,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:38:48,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:38:48,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258983562] [2020-07-07 12:38:48,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:38:48,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:38:48,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:38:48,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:38:48,287 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 9 states. [2020-07-07 12:38:48,837 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:38:49,234 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:38:49,533 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:38:49,850 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:38:50,137 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:38:50,465 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:38:51,484 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:38:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:38:53,338 INFO L93 Difference]: Finished difference Result 585 states and 671 transitions. [2020-07-07 12:38:53,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:38:53,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-07 12:38:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:38:53,345 INFO L225 Difference]: With dead ends: 585 [2020-07-07 12:38:53,345 INFO L226 Difference]: Without dead ends: 469 [2020-07-07 12:38:53,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:38:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-07 12:38:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 394. [2020-07-07 12:38:53,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-07-07 12:38:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 436 transitions. [2020-07-07 12:38:53,475 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 436 transitions. Word has length 152 [2020-07-07 12:38:53,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:38:53,476 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 436 transitions. [2020-07-07 12:38:53,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:38:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 436 transitions. [2020-07-07 12:38:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-07 12:38:53,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:38:53,479 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] [2020-07-07 12:38:53,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:38:53,480 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:38:53,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:38:53,480 INFO L82 PathProgramCache]: Analyzing trace with hash -501763232, now seen corresponding path program 1 times [2020-07-07 12:38:53,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:38:53,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568668526] [2020-07-07 12:38:53,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:38:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,897 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:38:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:38:54,009 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:38:54,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568668526] [2020-07-07 12:38:54,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:38:54,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:38:54,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687086121] [2020-07-07 12:38:54,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:38:54,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:38:54,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:38:54,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:38:54,012 INFO L87 Difference]: Start difference. First operand 394 states and 436 transitions. Second operand 6 states. [2020-07-07 12:38:54,509 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:38:56,252 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:38:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:38:56,866 INFO L93 Difference]: Finished difference Result 984 states and 1157 transitions. [2020-07-07 12:38:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:38:56,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-07 12:38:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:38:56,873 INFO L225 Difference]: With dead ends: 984 [2020-07-07 12:38:56,873 INFO L226 Difference]: Without dead ends: 700 [2020-07-07 12:38:56,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:38:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-07 12:38:57,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 584. [2020-07-07 12:38:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-07 12:38:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 646 transitions. [2020-07-07 12:38:57,057 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 646 transitions. Word has length 160 [2020-07-07 12:38:57,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:38:57,058 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 646 transitions. [2020-07-07 12:38:57,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:38:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 646 transitions. [2020-07-07 12:38:57,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-07 12:38:57,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:38:57,060 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] [2020-07-07 12:38:57,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:38:57,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:38:57,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:38:57,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1615445203, now seen corresponding path program 1 times [2020-07-07 12:38:57,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:38:57,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009323672] [2020-07-07 12:38:57,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:38:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,561 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:38:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:38:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:38:57,969 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:38:57,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009323672] [2020-07-07 12:38:57,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:38:57,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:38:57,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104981390] [2020-07-07 12:38:57,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:38:57,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:38:57,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:38:57,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:38:57,974 INFO L87 Difference]: Start difference. First operand 584 states and 646 transitions. Second operand 14 states. [2020-07-07 12:38:58,692 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:38:59,090 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:38:59,391 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:38:59,695 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:00,001 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:00,279 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:01,004 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:01,793 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:02,102 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:02,457 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:02,785 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:03,073 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:03,362 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:03,654 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:03,976 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:04,333 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:04,636 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:05,812 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:06,111 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:06,510 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:08,000 INFO L93 Difference]: Finished difference Result 1910 states and 2299 transitions. [2020-07-07 12:39:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 12:39:08,000 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2020-07-07 12:39:08,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:08,010 INFO L225 Difference]: With dead ends: 1910 [2020-07-07 12:39:08,010 INFO L226 Difference]: Without dead ends: 1436 [2020-07-07 12:39:08,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 12:39:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2020-07-07 12:39:08,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1317. [2020-07-07 12:39:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1317 states. [2020-07-07 12:39:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1493 transitions. [2020-07-07 12:39:08,439 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1493 transitions. Word has length 161 [2020-07-07 12:39:08,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:08,439 INFO L479 AbstractCegarLoop]: Abstraction has 1317 states and 1493 transitions. [2020-07-07 12:39:08,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:39:08,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1493 transitions. [2020-07-07 12:39:08,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-07 12:39:08,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:08,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:08,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:39:08,446 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:08,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:08,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1093558192, now seen corresponding path program 1 times [2020-07-07 12:39:08,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:08,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166979629] [2020-07-07 12:39:08,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:08,943 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:09,159 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:09,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166979629] [2020-07-07 12:39:09,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:09,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:39:09,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816054625] [2020-07-07 12:39:09,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:39:09,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:09,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:39:09,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:39:09,163 INFO L87 Difference]: Start difference. First operand 1317 states and 1493 transitions. Second operand 11 states. [2020-07-07 12:39:09,684 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:11,974 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:12,296 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:12,683 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:13,001 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:13,315 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:13,797 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:14,080 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:14,445 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:14,873 INFO L93 Difference]: Finished difference Result 1464 states and 1697 transitions. [2020-07-07 12:39:14,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 12:39:14,874 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-07-07 12:39:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:14,883 INFO L225 Difference]: With dead ends: 1464 [2020-07-07 12:39:14,883 INFO L226 Difference]: Without dead ends: 1461 [2020-07-07 12:39:14,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-07-07 12:39:14,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2020-07-07 12:39:15,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1317. [2020-07-07 12:39:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1317 states. [2020-07-07 12:39:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1490 transitions. [2020-07-07 12:39:15,387 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1490 transitions. Word has length 205 [2020-07-07 12:39:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:15,388 INFO L479 AbstractCegarLoop]: Abstraction has 1317 states and 1490 transitions. [2020-07-07 12:39:15,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:39:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1490 transitions. [2020-07-07 12:39:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-07 12:39:15,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:15,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:15,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:39:15,396 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:15,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1529007993, now seen corresponding path program 1 times [2020-07-07 12:39:15,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:15,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667326096] [2020-07-07 12:39:15,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,750 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:16,082 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:16,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667326096] [2020-07-07 12:39:16,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:16,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:39:16,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902354668] [2020-07-07 12:39:16,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:39:16,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:16,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:39:16,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:39:16,085 INFO L87 Difference]: Start difference. First operand 1317 states and 1490 transitions. Second operand 14 states. [2020-07-07 12:39:16,573 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:17,382 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:18,381 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:18,705 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:19,045 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-07 12:39:19,429 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:19,729 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:20,083 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:20,394 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:20,740 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-07 12:39:21,053 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:21,463 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:21,853 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:22,167 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:23,882 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:24,175 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:24,470 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:39:24,748 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:25,046 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:25,311 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:25,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:25,970 INFO L93 Difference]: Finished difference Result 2783 states and 3332 transitions. [2020-07-07 12:39:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 12:39:25,971 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 241 [2020-07-07 12:39:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:25,981 INFO L225 Difference]: With dead ends: 2783 [2020-07-07 12:39:25,981 INFO L226 Difference]: Without dead ends: 1576 [2020-07-07 12:39:25,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=308, Invalid=1332, Unknown=0, NotChecked=0, Total=1640 [2020-07-07 12:39:25,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2020-07-07 12:39:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1311. [2020-07-07 12:39:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1311 states. [2020-07-07 12:39:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1485 transitions. [2020-07-07 12:39:26,376 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1485 transitions. Word has length 241 [2020-07-07 12:39:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:26,376 INFO L479 AbstractCegarLoop]: Abstraction has 1311 states and 1485 transitions. [2020-07-07 12:39:26,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:39:26,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1485 transitions. [2020-07-07 12:39:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-07-07 12:39:26,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:26,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:26,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:39:26,383 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:26,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:26,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1822604423, now seen corresponding path program 1 times [2020-07-07 12:39:26,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:26,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312643658] [2020-07-07 12:39:26,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,704 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:27,032 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:27,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312643658] [2020-07-07 12:39:27,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:27,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:39:27,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219382524] [2020-07-07 12:39:27,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:39:27,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:27,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:39:27,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:39:27,035 INFO L87 Difference]: Start difference. First operand 1311 states and 1485 transitions. Second operand 14 states. [2020-07-07 12:39:27,686 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:27,966 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:28,244 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:28,522 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:28,784 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:29,744 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:30,040 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:30,346 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:30,678 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:30,998 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:32,242 INFO L93 Difference]: Finished difference Result 2379 states and 2759 transitions. [2020-07-07 12:39:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 12:39:32,249 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 232 [2020-07-07 12:39:32,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:32,256 INFO L225 Difference]: With dead ends: 2379 [2020-07-07 12:39:32,256 INFO L226 Difference]: Without dead ends: 1178 [2020-07-07 12:39:32,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-07-07 12:39:32,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-07-07 12:39:32,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1092. [2020-07-07 12:39:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2020-07-07 12:39:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1230 transitions. [2020-07-07 12:39:32,797 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1230 transitions. Word has length 232 [2020-07-07 12:39:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:32,797 INFO L479 AbstractCegarLoop]: Abstraction has 1092 states and 1230 transitions. [2020-07-07 12:39:32,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:39:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1230 transitions. [2020-07-07 12:39:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-07 12:39:32,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:32,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:32,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:39:32,803 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:32,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:32,803 INFO L82 PathProgramCache]: Analyzing trace with hash 9217376, now seen corresponding path program 1 times [2020-07-07 12:39:32,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:32,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243028863] [2020-07-07 12:39:32,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,337 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:33,597 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:33,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243028863] [2020-07-07 12:39:33,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:33,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 12:39:33,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354334267] [2020-07-07 12:39:33,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 12:39:33,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:33,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 12:39:33,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-07-07 12:39:33,599 INFO L87 Difference]: Start difference. First operand 1092 states and 1230 transitions. Second operand 13 states. [2020-07-07 12:39:34,083 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:34,821 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:35,549 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:35,881 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:36,197 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:36,522 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:36,809 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:37,113 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:37,405 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:37,735 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:38,105 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:38,406 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:39,977 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:40,262 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:41,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:41,406 INFO L93 Difference]: Finished difference Result 2566 states and 3073 transitions. [2020-07-07 12:39:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-07 12:39:41,407 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 237 [2020-07-07 12:39:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:41,416 INFO L225 Difference]: With dead ends: 2566 [2020-07-07 12:39:41,417 INFO L226 Difference]: Without dead ends: 1800 [2020-07-07 12:39:41,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2020-07-07 12:39:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2020-07-07 12:39:42,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1441. [2020-07-07 12:39:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2020-07-07 12:39:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 1644 transitions. [2020-07-07 12:39:42,090 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 1644 transitions. Word has length 237 [2020-07-07 12:39:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:42,090 INFO L479 AbstractCegarLoop]: Abstraction has 1441 states and 1644 transitions. [2020-07-07 12:39:42,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 12:39:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 1644 transitions. [2020-07-07 12:39:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-07-07 12:39:42,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:42,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-07 12:39:42,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:39:42,096 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:42,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2085662438, now seen corresponding path program 2 times [2020-07-07 12:39:42,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:42,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727739502] [2020-07-07 12:39:42,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:39:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:39:42,722 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:42,723 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:39:42,723 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:39:42,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:39:42,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:39:42 BoogieIcfgContainer [2020-07-07 12:39:42,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:39:42,759 INFO L168 Benchmark]: Toolchain (without parser) took 62452.82 ms. Allocated memory was 145.8 MB in the beginning and 963.6 MB in the end (delta: 817.9 MB). Free memory was 101.9 MB in the beginning and 489.4 MB in the end (delta: -387.5 MB). Peak memory consumption was 430.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:39:42,760 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:39:42,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.61 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 101.7 MB in the beginning and 174.3 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:39:42,761 INFO L168 Benchmark]: Boogie Preprocessor took 135.47 ms. Allocated memory is still 203.9 MB. Free memory was 174.3 MB in the beginning and 170.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:39:42,762 INFO L168 Benchmark]: RCFGBuilder took 1473.91 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.6 MB in the beginning and 178.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:39:42,763 INFO L168 Benchmark]: TraceAbstraction took 60168.15 ms. Allocated memory was 235.4 MB in the beginning and 963.6 MB in the end (delta: 728.2 MB). Free memory was 178.0 MB in the beginning and 489.4 MB in the end (delta: -311.3 MB). Peak memory consumption was 416.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:39:42,766 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.61 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 101.7 MB in the beginning and 174.3 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.47 ms. Allocated memory is still 203.9 MB. Free memory was 174.3 MB in the beginning and 170.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1473.91 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.6 MB in the beginning and 178.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60168.15 ms. Allocated memory was 235.4 MB in the beginning and 963.6 MB in the end (delta: 728.2 MB). Free memory was 178.0 MB in the beginning and 489.4 MB in the end (delta: -311.3 MB). Peak memory consumption was 416.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 784]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L148] int pumpRunning = 0; [L149] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L583] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int waterLevel = 1; [L825] int methaneLevelCritical = 0; [L391] int retValue_acc ; [L392] int tmp ; [L396] FCALL select_helpers() [L397] FCALL select_features() [L398] CALL, EXPR valid_product() [L815] int retValue_acc ; [L818] retValue_acc = 1 [L819] return (retValue_acc); [L398] RET, EXPR valid_product() [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L402] FCALL setup() [L403] CALL runTest() [L382] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L842] COND TRUE waterLevel < 2 [L843] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L155] COND FALSE !(\read(pumpRunning)) [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND TRUE ! pumpRunning [L189] CALL, EXPR isHighWaterLevel() [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L287] CALL, EXPR isHighWaterSensorDry() [L904] int retValue_acc ; [L907] COND FALSE !(waterLevel < 2) [L911] retValue_acc = 0 [L912] return (retValue_acc); [L287] RET, EXPR isHighWaterSensorDry() [L287] tmp = isHighWaterSensorDry() [L289] COND FALSE !(\read(tmp)) [L292] tmp___0 = 1 [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); [L189] RET, EXPR isHighWaterLevel() [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L193] CALL activatePump() [L212] pumpRunning = 1 [L193] RET activatePump() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification4_spec__1() [L116] int tmp ; [L117] int tmp___0 ; [L121] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L121] RET, EXPR getWaterLevel() [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) [L170] RET __utac_acc__Specification4_spec__1() [L100] RET timeShift() [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L155] COND TRUE \read(pumpRunning) [L157] CALL lowerWaterLevel() [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 [L157] RET lowerWaterLevel() [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND FALSE !(! pumpRunning) [L202] FCALL processEnvironment__wrappee__base() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification4_spec__1() [L116] int tmp ; [L117] int tmp___0 ; [L121] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L121] RET, EXPR getWaterLevel() [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) [L170] RET __utac_acc__Specification4_spec__1() [L100] RET timeShift() [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L155] COND TRUE \read(pumpRunning) [L157] CALL lowerWaterLevel() [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 [L157] RET lowerWaterLevel() [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND FALSE !(! pumpRunning) [L202] FCALL processEnvironment__wrappee__base() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification4_spec__1() [L116] int tmp ; [L117] int tmp___0 ; [L121] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L121] RET, EXPR getWaterLevel() [L121] tmp = getWaterLevel() [L123] COND TRUE tmp == 0 [L125] CALL, EXPR isPumpRunning() [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); [L125] RET, EXPR isPumpRunning() [L125] tmp___0 = isPumpRunning() [L127] COND TRUE \read(tmp___0) [L129] CALL __automaton_fail() [L784] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 612 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.0s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 49.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2079 SDtfs, 4578 SDslu, 5360 SDs, 0 SdLazy, 10751 SolverSat, 1340 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 258 SyntacticMatches, 6 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 27.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1441occurred in iteration=9, 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, 9 MinimizatonAttempts, 1239 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...