/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:34:43,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:34:43,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:34:43,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:34:43,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:34:43,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:34:43,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:34:43,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:34:43,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:34:43,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:34:43,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:34:43,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:34:43,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:34:43,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:34:43,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:34:43,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:34:43,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:34:43,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:34:43,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:34:43,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:34:43,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:34:43,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:34:43,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:34:43,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:34:43,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:34:43,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:34:43,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:34:43,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:34:43,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:34:43,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:34:43,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:34:43,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:34:43,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:34:43,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:34:43,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:34:43,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:34:43,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:34:43,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:34:43,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:34:43,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:34:43,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:34:43,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:34:43,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:34:43,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:34:43,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:34:43,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:34:43,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:34:43,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:34:43,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:34:43,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:34:43,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:34:43,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:34:43,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:34:43,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:34:43,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:34:43,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:34:43,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:34:43,733 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:34:43,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:34:43,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:34:43,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:34:43,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:34:43,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:34:43,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:34:43,736 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:34:44,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:34:44,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:34:44,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:34:44,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:34:44,181 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:34:44,182 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-09-04 15:34:44,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ec4af373/aaab36c626ba43b9ac1f16b091976b91/FLAG77ec4af16 [2020-09-04 15:34:44,837 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:34:44,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-09-04 15:34:44,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ec4af373/aaab36c626ba43b9ac1f16b091976b91/FLAG77ec4af16 [2020-09-04 15:34:45,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ec4af373/aaab36c626ba43b9ac1f16b091976b91 [2020-09-04 15:34:45,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:34:45,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:34:45,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:34:45,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:34:45,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:34:45,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:45,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4365ba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45, skipping insertion in model container [2020-09-04 15:34:45,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:45,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:34:45,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:34:45,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:34:45,637 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:34:45,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:34:45,952 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:34:45,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45 WrapperNode [2020-09-04 15:34:45,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:34:45,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:34:45,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:34:45,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:34:45,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:45,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:45,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:45,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:46,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:46,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:46,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... [2020-09-04 15:34:46,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:34:46,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:34:46,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:34:46,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:34:46,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:34:46,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:34:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:34:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:34:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:34:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:34:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:34:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:34:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:34:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:34:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:34:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:34:46,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:34:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:34:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 15:34:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:34:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:34:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:34:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:34:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:34:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:34:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:34:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:34:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:34:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:34:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:34:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:34:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:34:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-04 15:34:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:34:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:34:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:34:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:34:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:34:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:34:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:34:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:34:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:34:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:34:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:34:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:34:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:34:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:34:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:34:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:34:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:34:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:34:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:34:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:34:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:34:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:34:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:34:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:34:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:34:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:34:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:34:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:34:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:34:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:34:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:34:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:34:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:34:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:34:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:34:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:34:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:34:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:34:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:34:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:34:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:34:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:34:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:34:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:34:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:34:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:34:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:34:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:34:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:34:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:34:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:34:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:34:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:34:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:34:47,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:34:47,386 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:34:47,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:34:47 BoogieIcfgContainer [2020-09-04 15:34:47,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:34:47,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:34:47,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:34:47,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:34:47,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:34:45" (1/3) ... [2020-09-04 15:34:47,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513c83cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:34:47, skipping insertion in model container [2020-09-04 15:34:47,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:45" (2/3) ... [2020-09-04 15:34:47,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513c83cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:34:47, skipping insertion in model container [2020-09-04 15:34:47,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:34:47" (3/3) ... [2020-09-04 15:34:47,404 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-09-04 15:34:47,415 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:34:47,427 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:34:47,450 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:34:47,483 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:34:47,483 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:34:47,483 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:34:47,484 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:34:47,484 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:34:47,484 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:34:47,484 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:34:47,484 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:34:47,510 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-09-04 15:34:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 15:34:47,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:47,537 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] [2020-09-04 15:34:47,538 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:47,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1304799548, now seen corresponding path program 1 times [2020-09-04 15:34:47,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:47,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666641104] [2020-09-04 15:34:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:47,662 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,402 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 15:34:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 15:34:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:48,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666641104] [2020-09-04 15:34:48,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:48,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:34:48,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82425184] [2020-09-04 15:34:48,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:34:48,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:48,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:34:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:34:48,646 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2020-09-04 15:34:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:50,259 INFO L93 Difference]: Finished difference Result 511 states and 609 transitions. [2020-09-04 15:34:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:34:50,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 15:34:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:50,299 INFO L225 Difference]: With dead ends: 511 [2020-09-04 15:34:50,299 INFO L226 Difference]: Without dead ends: 315 [2020-09-04 15:34:50,312 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 [2020-09-04 15:34:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-04 15:34:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 270. [2020-09-04 15:34:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-04 15:34:50,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 295 transitions. [2020-09-04 15:34:50,455 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 295 transitions. Word has length 142 [2020-09-04 15:34:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:50,457 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 295 transitions. [2020-09-04 15:34:50,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:34:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 295 transitions. [2020-09-04 15:34:50,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 15:34:50,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:50,462 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] [2020-09-04 15:34:50,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:34:50,463 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:50,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:50,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1109681535, now seen corresponding path program 1 times [2020-09-04 15:34:50,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:50,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232431318] [2020-09-04 15:34:50,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:50,467 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,891 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:50,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:34:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:34:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:50,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232431318] [2020-09-04 15:34:50,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:50,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:34:50,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45251056] [2020-09-04 15:34:50,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:34:50,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:50,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:34:50,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:34:50,974 INFO L87 Difference]: Start difference. First operand 270 states and 295 transitions. Second operand 4 states. [2020-09-04 15:34:51,670 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:52,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:52,868 INFO L93 Difference]: Finished difference Result 422 states and 476 transitions. [2020-09-04 15:34:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:34:52,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 15:34:52,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:52,873 INFO L225 Difference]: With dead ends: 422 [2020-09-04 15:34:52,874 INFO L226 Difference]: Without dead ends: 298 [2020-09-04 15:34:52,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:34:52,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-04 15:34:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 260. [2020-09-04 15:34:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-04 15:34:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 282 transitions. [2020-09-04 15:34:52,977 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 282 transitions. Word has length 143 [2020-09-04 15:34:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:52,978 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 282 transitions. [2020-09-04 15:34:52,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:34:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 282 transitions. [2020-09-04 15:34:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-04 15:34:52,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:52,981 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] [2020-09-04 15:34:52,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:34:52,981 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:52,982 INFO L82 PathProgramCache]: Analyzing trace with hash 237546183, now seen corresponding path program 1 times [2020-09-04 15:34:52,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:52,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147641671] [2020-09-04 15:34:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:52,985 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,427 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:53,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 15:34:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:34:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:53,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147641671] [2020-09-04 15:34:53,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:53,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:34:53,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181626302] [2020-09-04 15:34:53,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:34:53,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:34:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:34:53,606 INFO L87 Difference]: Start difference. First operand 260 states and 282 transitions. Second operand 9 states. [2020-09-04 15:34:54,281 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:54,746 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:54,992 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:34:55,315 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:55,617 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:55,922 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:56,928 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:59,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:59,527 INFO L93 Difference]: Finished difference Result 695 states and 801 transitions. [2020-09-04 15:34:59,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:34:59,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-09-04 15:34:59,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:59,533 INFO L225 Difference]: With dead ends: 695 [2020-09-04 15:34:59,533 INFO L226 Difference]: Without dead ends: 545 [2020-09-04 15:34:59,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 15:34:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-09-04 15:34:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 474. [2020-09-04 15:34:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-09-04 15:34:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 532 transitions. [2020-09-04 15:34:59,752 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 532 transitions. Word has length 152 [2020-09-04 15:34:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:59,753 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 532 transitions. [2020-09-04 15:34:59,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:34:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 532 transitions. [2020-09-04 15:34:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-04 15:34:59,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:59,758 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] [2020-09-04 15:34:59,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:34:59,759 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:59,759 INFO L82 PathProgramCache]: Analyzing trace with hash 720148809, now seen corresponding path program 1 times [2020-09-04 15:34:59,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:59,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874416624] [2020-09-04 15:34:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:59,763 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,203 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:00,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:35:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 15:35:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 15:35:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:35:00,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874416624] [2020-09-04 15:35:00,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:00,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:35:00,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314749703] [2020-09-04 15:35:00,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:35:00,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:00,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:35:00,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:35:00,443 INFO L87 Difference]: Start difference. First operand 474 states and 532 transitions. Second operand 14 states. [2020-09-04 15:35:00,959 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:01,378 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:01,697 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:02,096 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:02,346 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:02,654 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:03,392 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:04,845 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:05,278 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:05,807 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:06,191 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:06,557 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:06,875 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:07,195 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:07,544 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:07,839 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:08,302 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:08,748 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:09,101 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:09,521 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:11,901 INFO L93 Difference]: Finished difference Result 1660 states and 2079 transitions. [2020-09-04 15:35:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 15:35:11,902 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2020-09-04 15:35:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:11,912 INFO L225 Difference]: With dead ends: 1660 [2020-09-04 15:35:11,912 INFO L226 Difference]: Without dead ends: 1296 [2020-09-04 15:35:11,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 15:35:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2020-09-04 15:35:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1157. [2020-09-04 15:35:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-09-04 15:35:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1369 transitions. [2020-09-04 15:35:12,321 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1369 transitions. Word has length 161 [2020-09-04 15:35:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:12,322 INFO L479 AbstractCegarLoop]: Abstraction has 1157 states and 1369 transitions. [2020-09-04 15:35:12,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:35:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1369 transitions. [2020-09-04 15:35:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 15:35:12,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:12,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:35:12,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:35:12,328 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:12,328 INFO L82 PathProgramCache]: Analyzing trace with hash 615515948, now seen corresponding path program 1 times [2020-09-04 15:35:12,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:12,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278723866] [2020-09-04 15:35:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:12,331 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,648 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:12,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:35:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:35:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 15:35:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 15:35:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:35:12,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278723866] [2020-09-04 15:35:12,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:12,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 15:35:12,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268387912] [2020-09-04 15:35:12,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 15:35:12,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:12,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 15:35:12,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 15:35:12,784 INFO L87 Difference]: Start difference. First operand 1157 states and 1369 transitions. Second operand 6 states. [2020-09-04 15:35:13,297 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:15,972 INFO L93 Difference]: Finished difference Result 2734 states and 3400 transitions. [2020-09-04 15:35:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 15:35:15,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-04 15:35:15,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:15,989 INFO L225 Difference]: With dead ends: 2734 [2020-09-04 15:35:15,990 INFO L226 Difference]: Without dead ends: 1687 [2020-09-04 15:35:15,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-04 15:35:15,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-09-04 15:35:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1564. [2020-09-04 15:35:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1564 states. [2020-09-04 15:35:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 1826 transitions. [2020-09-04 15:35:16,508 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 1826 transitions. Word has length 166 [2020-09-04 15:35:16,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:16,509 INFO L479 AbstractCegarLoop]: Abstraction has 1564 states and 1826 transitions. [2020-09-04 15:35:16,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 15:35:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 1826 transitions. [2020-09-04 15:35:16,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-04 15:35:16,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:16,515 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] [2020-09-04 15:35:16,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:35:16,516 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:16,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:16,516 INFO L82 PathProgramCache]: Analyzing trace with hash -787475563, now seen corresponding path program 1 times [2020-09-04 15:35:16,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:16,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425508504] [2020-09-04 15:35:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:16,564 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:16,945 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:16,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:35:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:35:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 15:35:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-04 15:35:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-04 15:35:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-04 15:35:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:35:17,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425508504] [2020-09-04 15:35:17,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:17,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 15:35:17,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043718245] [2020-09-04 15:35:17,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 15:35:17,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:17,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 15:35:17,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-04 15:35:17,170 INFO L87 Difference]: Start difference. First operand 1564 states and 1826 transitions. Second operand 11 states. [2020-09-04 15:35:17,807 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:19,962 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:20,273 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:20,637 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:20,940 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:21,230 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:22,268 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:22,551 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:22,945 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:23,673 INFO L93 Difference]: Finished difference Result 1728 states and 2071 transitions. [2020-09-04 15:35:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 15:35:23,674 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-09-04 15:35:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:23,683 INFO L225 Difference]: With dead ends: 1728 [2020-09-04 15:35:23,683 INFO L226 Difference]: Without dead ends: 1725 [2020-09-04 15:35:23,684 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 [2020-09-04 15:35:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2020-09-04 15:35:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1573. [2020-09-04 15:35:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-09-04 15:35:24,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 1834 transitions. [2020-09-04 15:35:24,155 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 1834 transitions. Word has length 205 [2020-09-04 15:35:24,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:24,155 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 1834 transitions. [2020-09-04 15:35:24,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 15:35:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1834 transitions. [2020-09-04 15:35:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-09-04 15:35:24,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:24,172 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, 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, 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] [2020-09-04 15:35:24,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 15:35:24,172 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:24,173 INFO L82 PathProgramCache]: Analyzing trace with hash -682872410, now seen corresponding path program 1 times [2020-09-04 15:35:24,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:24,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315845374] [2020-09-04 15:35:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:24,186 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,549 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:24,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:35:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:35:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-04 15:35:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-04 15:35:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-04 15:35:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-04 15:35:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2020-09-04 15:35:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2020-09-04 15:35:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:24,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2020-09-04 15:35:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-04 15:35:25,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315845374] [2020-09-04 15:35:25,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:25,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:35:25,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647060870] [2020-09-04 15:35:25,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:35:25,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:25,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:35:25,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:35:25,081 INFO L87 Difference]: Start difference. First operand 1573 states and 1834 transitions. Second operand 14 states. [2020-09-04 15:35:25,656 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:26,717 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:27,302 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:27,627 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:28,013 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-04 15:35:28,368 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:28,742 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:29,054 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:31,719 INFO L93 Difference]: Finished difference Result 2601 states and 3160 transitions. [2020-09-04 15:35:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 15:35:31,720 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 391 [2020-09-04 15:35:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:31,726 INFO L225 Difference]: With dead ends: 2601 [2020-09-04 15:35:31,726 INFO L226 Difference]: Without dead ends: 864 [2020-09-04 15:35:31,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2020-09-04 15:35:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-09-04 15:35:32,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 769. [2020-09-04 15:35:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-09-04 15:35:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 872 transitions. [2020-09-04 15:35:32,064 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 872 transitions. Word has length 391 [2020-09-04 15:35:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:32,065 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 872 transitions. [2020-09-04 15:35:32,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:35:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 872 transitions. [2020-09-04 15:35:32,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-09-04 15:35:32,073 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:32,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:35:32,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 15:35:32,074 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:32,074 INFO L82 PathProgramCache]: Analyzing trace with hash 532989029, now seen corresponding path program 1 times [2020-09-04 15:35:32,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:32,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035710262] [2020-09-04 15:35:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:32,099 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,481 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:32,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:35:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 15:35:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-04 15:35:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-04 15:35:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-09-04 15:35:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-09-04 15:35:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-04 15:35:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2020-09-04 15:35:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-04 15:35:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:35:32,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035710262] [2020-09-04 15:35:32,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:32,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:35:32,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395051491] [2020-09-04 15:35:32,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:35:32,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:32,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:35:32,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:35:32,908 INFO L87 Difference]: Start difference. First operand 769 states and 872 transitions. Second operand 14 states. [2020-09-04 15:35:33,675 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-04 15:35:34,604 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:35,495 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-04 15:35:36,068 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-04 15:35:36,650 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-04 15:35:37,234 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-04 15:35:37,777 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-04 15:35:39,506 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:39,812 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:40,121 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:40,445 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:40,783 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:41,100 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:42,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:42,957 INFO L93 Difference]: Finished difference Result 1392 states and 1654 transitions. [2020-09-04 15:35:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-04 15:35:42,958 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 291 [2020-09-04 15:35:42,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:42,964 INFO L225 Difference]: With dead ends: 1392 [2020-09-04 15:35:42,964 INFO L226 Difference]: Without dead ends: 733 [2020-09-04 15:35:42,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=239, Invalid=951, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 15:35:42,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-09-04 15:35:43,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 684. [2020-09-04 15:35:43,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-09-04 15:35:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 759 transitions. [2020-09-04 15:35:43,216 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 759 transitions. Word has length 291 [2020-09-04 15:35:43,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:43,217 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 759 transitions. [2020-09-04 15:35:43,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:35:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 759 transitions. [2020-09-04 15:35:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-09-04 15:35:43,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:43,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:35:43,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 15:35:43,223 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:43,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:43,224 INFO L82 PathProgramCache]: Analyzing trace with hash -704198954, now seen corresponding path program 1 times [2020-09-04 15:35:43,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:43,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538520692] [2020-09-04 15:35:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:43,243 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,611 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:43,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:35:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 15:35:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-04 15:35:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-04 15:35:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-09-04 15:35:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-04 15:35:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-04 15:35:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-09-04 15:35:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:35:43,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538520692] [2020-09-04 15:35:43,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:43,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-04 15:35:43,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561739388] [2020-09-04 15:35:43,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 15:35:43,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:43,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 15:35:43,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-09-04 15:35:43,921 INFO L87 Difference]: Start difference. First operand 684 states and 759 transitions. Second operand 13 states. [2020-09-04 15:35:44,433 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:45,208 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:46,421 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:46,735 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:47,071 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:47,376 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:47,672 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:47,969 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:48,259 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:48,574 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:48,925 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:49,223 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:51,058 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:51,342 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:52,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:52,544 INFO L93 Difference]: Finished difference Result 1512 states and 1784 transitions. [2020-09-04 15:35:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-04 15:35:52,545 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 287 [2020-09-04 15:35:52,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:52,552 INFO L225 Difference]: With dead ends: 1512 [2020-09-04 15:35:52,552 INFO L226 Difference]: Without dead ends: 1024 [2020-09-04 15:35:52,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 57 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=363, Invalid=897, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 15:35:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-09-04 15:35:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 878. [2020-09-04 15:35:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-04 15:35:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 990 transitions. [2020-09-04 15:35:52,878 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 990 transitions. Word has length 287 [2020-09-04 15:35:52,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:52,879 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 990 transitions. [2020-09-04 15:35:52,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 15:35:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 990 transitions. [2020-09-04 15:35:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-09-04 15:35:52,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:52,883 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, 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, 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] [2020-09-04 15:35:52,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 15:35:52,883 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:52,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1694909914, now seen corresponding path program 2 times [2020-09-04 15:35:52,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:52,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576396066] [2020-09-04 15:35:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:52,907 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:35:52,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:35:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:35:53,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:35:53,551 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:35:53,551 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:35:53,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 15:35:53,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:35:53 BoogieIcfgContainer [2020-09-04 15:35:53,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:35:53,599 INFO L168 Benchmark]: Toolchain (without parser) took 68477.23 ms. Allocated memory was 137.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 100.3 MB in the beginning and 375.8 MB in the end (delta: -275.6 MB). Peak memory consumption was 777.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:35:53,599 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:35:53,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.96 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 171.3 MB in the end (delta: -71.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:35:53,601 INFO L168 Benchmark]: Boogie Preprocessor took 99.62 ms. Allocated memory is still 202.4 MB. Free memory was 171.3 MB in the beginning and 167.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:35:53,602 INFO L168 Benchmark]: RCFGBuilder took 1340.56 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 176.6 MB in the end (delta: -9.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:35:53,606 INFO L168 Benchmark]: TraceAbstraction took 66199.26 ms. Allocated memory was 233.8 MB in the beginning and 1.2 GB in the end (delta: 957.3 MB). Free memory was 176.6 MB in the beginning and 375.8 MB in the end (delta: -199.2 MB). Peak memory consumption was 758.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:35:53,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.96 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 171.3 MB in the end (delta: -71.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.62 ms. Allocated memory is still 202.4 MB. Free memory was 171.3 MB in the beginning and 167.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1340.56 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 176.6 MB in the end (delta: -9.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 66199.26 ms. Allocated memory was 233.8 MB in the beginning and 1.2 GB in the end (delta: 957.3 MB). Free memory was 176.6 MB in the beginning and 375.8 MB in the end (delta: -199.2 MB). Peak memory consumption was 758.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 828]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L219] int pumpRunning = 0; [L220] int systemActive = 1; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L868] int waterLevel = 1; [L869] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] splverifierCounter = 0 [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND TRUE \read(tmp) [L167] CALL waterRise() [L886] COND TRUE waterLevel < 2 [L887] waterLevel = waterLevel + 1 [L167] RET waterRise() [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L200] CALL timeShift() [L227] COND FALSE !(\read(pumpRunning)) [L234] COND TRUE \read(systemActive) [L236] CALL processEnvironment() [L282] int tmp ; [L285] COND FALSE !(\read(pumpRunning)) [L300] CALL processEnvironment__wrappee__methaneQuery() [L256] int tmp ; [L259] COND TRUE ! pumpRunning [L261] CALL, EXPR isHighWaterLevel() [L396] int retValue_acc ; [L397] int tmp ; [L398] int tmp___0 ; [L402] CALL, EXPR isHighWaterSensorDry() [L948] int retValue_acc ; [L951] COND FALSE !(waterLevel < 2) [L955] retValue_acc = 0 [L956] return (retValue_acc); [L402] RET, EXPR isHighWaterSensorDry() [L402] tmp = isHighWaterSensorDry() [L404] COND FALSE !(\read(tmp)) [L407] tmp___0 = 1 [L409] retValue_acc = tmp___0 [L410] return (retValue_acc); [L261] RET, EXPR isHighWaterLevel() [L261] tmp = isHighWaterLevel() [L263] COND TRUE \read(tmp) [L265] CALL activatePump() [L315] int tmp ; [L319] CALL, EXPR isMethaneAlarm() [L340] int retValue_acc ; [L344] CALL, EXPR isMethaneLevelCritical() [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); [L319] RET, EXPR isMethaneAlarm() [L319] tmp = isMethaneAlarm() [L321] COND FALSE !(\read(tmp)) [L325] CALL activatePump__wrappee__highWaterSensor() [L310] pumpRunning = 1 [L325] RET activatePump__wrappee__highWaterSensor() [L265] RET activatePump() [L300] RET processEnvironment__wrappee__methaneQuery() [L236] RET processEnvironment() [L242] CALL __utac_acc__Specification4_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR getWaterLevel() [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); [L804] RET, EXPR getWaterLevel() [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) [L242] RET __utac_acc__Specification4_spec__1() [L200] RET timeShift() [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND FALSE !(\read(tmp)) [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L200] CALL timeShift() [L227] COND TRUE \read(pumpRunning) [L229] CALL lowerWaterLevel() [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 [L229] RET lowerWaterLevel() [L234] COND TRUE \read(systemActive) [L236] CALL processEnvironment() [L282] int tmp ; [L285] COND TRUE \read(pumpRunning) [L287] CALL, EXPR isMethaneAlarm() [L340] int retValue_acc ; [L344] CALL, EXPR isMethaneLevelCritical() [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); [L287] RET, EXPR isMethaneAlarm() [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) [L295] CALL processEnvironment__wrappee__methaneQuery() [L256] int tmp ; [L259] COND FALSE !(! pumpRunning) [L274] FCALL processEnvironment__wrappee__base() [L295] RET processEnvironment__wrappee__methaneQuery() [L236] RET processEnvironment() [L242] CALL __utac_acc__Specification4_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR getWaterLevel() [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); [L804] RET, EXPR getWaterLevel() [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) [L242] RET __utac_acc__Specification4_spec__1() [L200] RET timeShift() [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND FALSE !(\read(tmp)) [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L200] CALL timeShift() [L227] COND TRUE \read(pumpRunning) [L229] CALL lowerWaterLevel() [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 [L229] RET lowerWaterLevel() [L234] COND TRUE \read(systemActive) [L236] CALL processEnvironment() [L282] int tmp ; [L285] COND TRUE \read(pumpRunning) [L287] CALL, EXPR isMethaneAlarm() [L340] int retValue_acc ; [L344] CALL, EXPR isMethaneLevelCritical() [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); [L287] RET, EXPR isMethaneAlarm() [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) [L295] CALL processEnvironment__wrappee__methaneQuery() [L256] int tmp ; [L259] COND FALSE !(! pumpRunning) [L274] FCALL processEnvironment__wrappee__base() [L295] RET processEnvironment__wrappee__methaneQuery() [L236] RET processEnvironment() [L242] CALL __utac_acc__Specification4_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR getWaterLevel() [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); [L804] RET, EXPR getWaterLevel() [L804] tmp = getWaterLevel() [L806] COND TRUE tmp == 0 [L808] CALL, EXPR isPumpRunning() [L351] int retValue_acc ; [L354] retValue_acc = pumpRunning [L355] return (retValue_acc); [L808] RET, EXPR isPumpRunning() [L808] tmp___0 = isPumpRunning() [L810] COND TRUE \read(tmp___0) [L812] CALL __automaton_fail() [L828] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 633 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 66.0s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 56.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2423 SDtfs, 5827 SDslu, 5540 SDs, 0 SdLazy, 13210 SolverSat, 1930 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 328 SyntacticMatches, 9 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 26.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1573occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 858 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...