/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_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:28:38,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:28:38,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:28:38,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:28:38,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:28:38,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:28:38,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:28:38,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:28:38,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:28:38,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:28:38,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:28:38,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:28:38,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:28:38,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:28:38,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:28:38,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:28:38,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:28:38,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:28:38,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:28:38,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:28:38,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:28:38,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:28:38,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:28:38,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:28:38,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:28:38,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:28:38,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:28:38,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:28:38,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:28:38,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:28:38,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:28:38,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:28:38,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:28:38,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:28:38,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:28:38,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:28:38,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:28:38,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:28:38,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:28:38,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:28:38,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:28:38,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:28:38,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:28:38,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:28:38,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:28:38,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:28:38,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:28:38,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:28:38,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:28:38,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:28:38,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:28:38,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:28:38,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:28:38,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:28:38,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:28:38,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:28:38,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:28:38,833 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:28:38,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:28:38,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:28:38,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:28:38,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:28:38,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:28:38,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:28:38,837 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:28:39,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:28:39,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:28:39,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:28:39,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:28:39,116 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:28:39,117 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-07-07 12:28:39,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c0598fb/b909c5d3a572490bbe2fb0c1f1c17d77/FLAGd82adbda1 [2020-07-07 12:28:39,775 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:28:39,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-07-07 12:28:39,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c0598fb/b909c5d3a572490bbe2fb0c1f1c17d77/FLAGd82adbda1 [2020-07-07 12:28:40,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c0598fb/b909c5d3a572490bbe2fb0c1f1c17d77 [2020-07-07 12:28:40,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:28:40,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:28:40,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:28:40,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:28:40,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:28:40,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335f9d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40, skipping insertion in model container [2020-07-07 12:28:40,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:28:40,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:28:40,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:28:40,553 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:28:40,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:28:40,670 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:28:40,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40 WrapperNode [2020-07-07 12:28:40,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:28:40,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:28:40,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:28:40,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:28:40,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... [2020-07-07 12:28:40,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:28:40,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:28:40,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:28:40,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:28:40,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:28:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:28:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:28:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:28:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:28:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:28:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:28:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:28:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:28:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:28:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:28:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:28:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:28:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:28:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:28:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:28:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:28:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-07 12:28:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-07 12:28:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:28:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:28:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:28:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:28:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:28:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:28:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:28:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:28:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:28:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:28:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:28:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:28:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:28:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:28:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:28:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:28:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:28:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:28:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:28:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-07 12:28:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:28:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-07 12:28:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:28:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:28:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:28:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:28:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:28:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:28:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:28:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:28:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:28:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:28:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:28:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:28:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:28:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:28:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:28:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:28:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:28:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:28:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:28:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:28:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:28:42,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:28:42,178 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:28:42,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:28:42 BoogieIcfgContainer [2020-07-07 12:28:42,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:28:42,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:28:42,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:28:42,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:28:42,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:28:40" (1/3) ... [2020-07-07 12:28:42,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2509d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:28:42, skipping insertion in model container [2020-07-07 12:28:42,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:40" (2/3) ... [2020-07-07 12:28:42,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2509d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:28:42, skipping insertion in model container [2020-07-07 12:28:42,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:28:42" (3/3) ... [2020-07-07 12:28:42,195 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-07-07 12:28:42,207 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:28:42,216 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:28:42,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:28:42,259 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:28:42,260 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:28:42,260 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:28:42,260 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:28:42,261 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:28:42,261 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:28:42,261 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:28:42,261 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:28:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-07-07 12:28:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-07 12:28:42,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:42,307 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] [2020-07-07 12:28:42,307 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:42,314 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-07-07 12:28:42,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:42,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476748754] [2020-07-07 12:28:42,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,042 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:28:43,211 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:43,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476748754] [2020-07-07 12:28:43,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:43,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:28:43,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226760839] [2020-07-07 12:28:43,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:28:43,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:43,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:28:43,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:28:43,240 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-07-07 12:28:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:44,650 INFO L93 Difference]: Finished difference Result 442 states and 524 transitions. [2020-07-07 12:28:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 12:28:44,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-07-07 12:28:44,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:44,673 INFO L225 Difference]: With dead ends: 442 [2020-07-07 12:28:44,674 INFO L226 Difference]: Without dead ends: 287 [2020-07-07 12:28:44,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:28:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-07 12:28:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2020-07-07 12:28:44,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-07 12:28:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-07-07 12:28:44,851 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 148 [2020-07-07 12:28:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:44,852 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-07-07 12:28:44,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:28:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-07-07 12:28:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-07 12:28:44,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:44,857 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] [2020-07-07 12:28:44,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:28:44,858 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash 16536712, now seen corresponding path program 1 times [2020-07-07 12:28:44,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:44,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797859313] [2020-07-07 12:28:44,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,243 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:28:45,371 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:45,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797859313] [2020-07-07 12:28:45,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:45,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 12:28:45,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451409526] [2020-07-07 12:28:45,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 12:28:45,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 12:28:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:28:45,377 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 5 states. [2020-07-07 12:28:46,032 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:28:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:46,932 INFO L93 Difference]: Finished difference Result 367 states and 415 transitions. [2020-07-07 12:28:46,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 12:28:46,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-07 12:28:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:46,942 INFO L225 Difference]: With dead ends: 367 [2020-07-07 12:28:46,942 INFO L226 Difference]: Without dead ends: 276 [2020-07-07 12:28:46,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:28:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-07-07 12:28:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 230. [2020-07-07 12:28:47,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-07 12:28:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-07-07 12:28:47,013 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 149 [2020-07-07 12:28:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:47,014 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-07-07 12:28:47,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 12:28:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-07-07 12:28:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-07 12:28:47,017 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:47,017 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] [2020-07-07 12:28:47,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:28:47,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:47,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:47,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1541802730, now seen corresponding path program 1 times [2020-07-07 12:28:47,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:47,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113781740] [2020-07-07 12:28:47,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,366 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:28:47,538 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:47,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113781740] [2020-07-07 12:28:47,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:47,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:28:47,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13261921] [2020-07-07 12:28:47,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:28:47,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:47,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:28:47,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:28:47,542 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 11 states. [2020-07-07 12:28:48,117 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:48,432 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:28:48,686 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-07 12:28:48,941 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:49,237 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:49,491 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:50,942 INFO L93 Difference]: Finished difference Result 414 states and 480 transitions. [2020-07-07 12:28:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:28:50,942 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2020-07-07 12:28:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:50,946 INFO L225 Difference]: With dead ends: 414 [2020-07-07 12:28:50,947 INFO L226 Difference]: Without dead ends: 299 [2020-07-07 12:28:50,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-07-07 12:28:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-07-07 12:28:51,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 230. [2020-07-07 12:28:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-07 12:28:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2020-07-07 12:28:51,014 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 162 [2020-07-07 12:28:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:51,014 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2020-07-07 12:28:51,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:28:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2020-07-07 12:28:51,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-07 12:28:51,017 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:51,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:28:51,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:28:51,018 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:51,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:51,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1425032231, now seen corresponding path program 1 times [2020-07-07 12:28:51,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:51,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798049692] [2020-07-07 12:28:51,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,294 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:28:51,429 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:51,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798049692] [2020-07-07 12:28:51,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:51,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 12:28:51,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949053692] [2020-07-07 12:28:51,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 12:28:51,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:51,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 12:28:51,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 12:28:51,434 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 8 states. [2020-07-07 12:28:52,089 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:53,763 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:28:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:54,481 INFO L93 Difference]: Finished difference Result 593 states and 710 transitions. [2020-07-07 12:28:54,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-07 12:28:54,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-07-07 12:28:54,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:54,487 INFO L225 Difference]: With dead ends: 593 [2020-07-07 12:28:54,487 INFO L226 Difference]: Without dead ends: 478 [2020-07-07 12:28:54,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-07-07 12:28:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-07 12:28:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 337. [2020-07-07 12:28:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-07 12:28:54,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 364 transitions. [2020-07-07 12:28:54,605 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 364 transitions. Word has length 170 [2020-07-07 12:28:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:54,606 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 364 transitions. [2020-07-07 12:28:54,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 12:28:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 364 transitions. [2020-07-07 12:28:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-07 12:28:54,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:54,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:28:54,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:28:54,610 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:54,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:54,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1572233247, now seen corresponding path program 1 times [2020-07-07 12:28:54,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:54,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468817642] [2020-07-07 12:28:54,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,014 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:28:55,288 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:55,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468817642] [2020-07-07 12:28:55,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:55,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:28:55,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603259594] [2020-07-07 12:28:55,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:28:55,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:55,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:28:55,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:28:55,291 INFO L87 Difference]: Start difference. First operand 337 states and 364 transitions. Second operand 11 states. [2020-07-07 12:28:55,984 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:57,595 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:57,859 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:58,115 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:58,337 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:58,582 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:58,849 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:59,088 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:59,426 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:00,780 INFO L93 Difference]: Finished difference Result 984 states and 1211 transitions. [2020-07-07 12:29:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-07 12:29:00,781 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-07-07 12:29:00,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:00,787 INFO L225 Difference]: With dead ends: 984 [2020-07-07 12:29:00,787 INFO L226 Difference]: Without dead ends: 762 [2020-07-07 12:29:00,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-07-07 12:29:00,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-07-07 12:29:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 513. [2020-07-07 12:29:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2020-07-07 12:29:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 559 transitions. [2020-07-07 12:29:00,960 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 559 transitions. Word has length 194 [2020-07-07 12:29:00,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:00,961 INFO L479 AbstractCegarLoop]: Abstraction has 513 states and 559 transitions. [2020-07-07 12:29:00,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:29:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 559 transitions. [2020-07-07 12:29:00,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-07 12:29:00,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:00,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:29:00,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:29:00,965 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:00,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:00,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1795239893, now seen corresponding path program 1 times [2020-07-07 12:29:00,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:00,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329262704] [2020-07-07 12:29:00,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,248 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:29:01,455 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:01,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329262704] [2020-07-07 12:29:01,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:01,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 12:29:01,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505900482] [2020-07-07 12:29:01,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 12:29:01,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:01,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 12:29:01,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-07 12:29:01,461 INFO L87 Difference]: Start difference. First operand 513 states and 559 transitions. Second operand 12 states. [2020-07-07 12:29:02,213 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:03,692 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:03,922 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:04,157 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:29:04,401 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:04,730 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:05,019 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:29:05,265 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:05,517 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:07,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:07,139 INFO L93 Difference]: Finished difference Result 1290 states and 1569 transitions. [2020-07-07 12:29:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 12:29:07,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 199 [2020-07-07 12:29:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:07,152 INFO L225 Difference]: With dead ends: 1290 [2020-07-07 12:29:07,152 INFO L226 Difference]: Without dead ends: 892 [2020-07-07 12:29:07,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=434, Invalid=1206, Unknown=0, NotChecked=0, Total=1640 [2020-07-07 12:29:07,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2020-07-07 12:29:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 511. [2020-07-07 12:29:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-07-07 12:29:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 555 transitions. [2020-07-07 12:29:07,443 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 555 transitions. Word has length 199 [2020-07-07 12:29:07,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:07,444 INFO L479 AbstractCegarLoop]: Abstraction has 511 states and 555 transitions. [2020-07-07 12:29:07,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 12:29:07,445 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 555 transitions. [2020-07-07 12:29:07,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-07 12:29:07,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:07,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:29:07,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:29:07,450 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:07,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:07,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1512917738, now seen corresponding path program 1 times [2020-07-07 12:29:07,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:07,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103796795] [2020-07-07 12:29:07,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,726 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:29:07,936 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:07,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103796795] [2020-07-07 12:29:07,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:07,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 12:29:07,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322479949] [2020-07-07 12:29:07,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 12:29:07,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:07,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 12:29:07,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-07 12:29:07,940 INFO L87 Difference]: Start difference. First operand 511 states and 555 transitions. Second operand 12 states. [2020-07-07 12:29:09,276 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:09,514 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:29:09,766 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-07 12:29:10,008 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:10,272 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:10,505 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:12,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:12,153 INFO L93 Difference]: Finished difference Result 1298 states and 1591 transitions. [2020-07-07 12:29:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 12:29:12,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2020-07-07 12:29:12,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:12,160 INFO L225 Difference]: With dead ends: 1298 [2020-07-07 12:29:12,160 INFO L226 Difference]: Without dead ends: 902 [2020-07-07 12:29:12,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2020-07-07 12:29:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-07-07 12:29:12,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 527. [2020-07-07 12:29:12,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-07-07 12:29:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 571 transitions. [2020-07-07 12:29:12,391 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 571 transitions. Word has length 200 [2020-07-07 12:29:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:12,392 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 571 transitions. [2020-07-07 12:29:12,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 12:29:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 571 transitions. [2020-07-07 12:29:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-07 12:29:12,396 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:12,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:29:12,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:29:12,397 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:12,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1642255734, now seen corresponding path program 1 times [2020-07-07 12:29:12,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:12,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25292414] [2020-07-07 12:29:12,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,703 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:29:12,900 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:12,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25292414] [2020-07-07 12:29:12,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:12,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 12:29:12,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629035323] [2020-07-07 12:29:12,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 12:29:12,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:12,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 12:29:12,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:29:12,903 INFO L87 Difference]: Start difference. First operand 527 states and 571 transitions. Second operand 15 states. [2020-07-07 12:29:13,471 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:13,713 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:29:13,955 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:14,187 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:14,410 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:15,384 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:15,635 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:15,891 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:16,153 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:16,396 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:18,088 INFO L93 Difference]: Finished difference Result 1336 states and 1656 transitions. [2020-07-07 12:29:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 12:29:18,089 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2020-07-07 12:29:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:18,096 INFO L225 Difference]: With dead ends: 1336 [2020-07-07 12:29:18,096 INFO L226 Difference]: Without dead ends: 924 [2020-07-07 12:29:18,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 12:29:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-07-07 12:29:18,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 539. [2020-07-07 12:29:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-07-07 12:29:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 583 transitions. [2020-07-07 12:29:18,306 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 583 transitions. Word has length 200 [2020-07-07 12:29:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:18,307 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 583 transitions. [2020-07-07 12:29:18,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 12:29:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 583 transitions. [2020-07-07 12:29:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-07 12:29:18,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:18,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:29:18,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:29:18,310 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:18,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:18,311 INFO L82 PathProgramCache]: Analyzing trace with hash -488866957, now seen corresponding path program 1 times [2020-07-07 12:29:18,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:18,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5641736] [2020-07-07 12:29:18,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,564 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:29:18,798 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:18,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5641736] [2020-07-07 12:29:18,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:18,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:29:18,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742996903] [2020-07-07 12:29:18,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:29:18,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:18,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:29:18,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:29:18,800 INFO L87 Difference]: Start difference. First operand 539 states and 583 transitions. Second operand 9 states. [2020-07-07 12:29:19,285 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:19,874 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:23,191 INFO L93 Difference]: Finished difference Result 2025 states and 2572 transitions. [2020-07-07 12:29:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 12:29:23,191 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-07-07 12:29:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:23,202 INFO L225 Difference]: With dead ends: 2025 [2020-07-07 12:29:23,202 INFO L226 Difference]: Without dead ends: 1601 [2020-07-07 12:29:23,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2020-07-07 12:29:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-07-07 12:29:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 957. [2020-07-07 12:29:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-07-07 12:29:23,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1063 transitions. [2020-07-07 12:29:23,536 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1063 transitions. Word has length 200 [2020-07-07 12:29:23,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:23,537 INFO L479 AbstractCegarLoop]: Abstraction has 957 states and 1063 transitions. [2020-07-07 12:29:23,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:29:23,537 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1063 transitions. [2020-07-07 12:29:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-07 12:29:23,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:23,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:29:23,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:29:23,540 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:23,540 INFO L82 PathProgramCache]: Analyzing trace with hash -390526145, now seen corresponding path program 1 times [2020-07-07 12:29:23,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:23,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341141535] [2020-07-07 12:29:23,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,789 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:29:23,948 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:23,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341141535] [2020-07-07 12:29:23,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:23,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:29:23,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221666440] [2020-07-07 12:29:23,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:29:23,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:23,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:29:23,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:29:23,950 INFO L87 Difference]: Start difference. First operand 957 states and 1063 transitions. Second operand 9 states. [2020-07-07 12:29:24,439 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:27,737 INFO L93 Difference]: Finished difference Result 2467 states and 3159 transitions. [2020-07-07 12:29:27,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-07 12:29:27,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2020-07-07 12:29:27,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:27,754 INFO L225 Difference]: With dead ends: 2467 [2020-07-07 12:29:27,754 INFO L226 Difference]: Without dead ends: 2464 [2020-07-07 12:29:27,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 12:29:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2020-07-07 12:29:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1476. [2020-07-07 12:29:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2020-07-07 12:29:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1655 transitions. [2020-07-07 12:29:28,358 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1655 transitions. Word has length 205 [2020-07-07 12:29:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:28,361 INFO L479 AbstractCegarLoop]: Abstraction has 1476 states and 1655 transitions. [2020-07-07 12:29:28,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:29:28,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1655 transitions. [2020-07-07 12:29:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-07-07 12:29:28,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:28,367 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] [2020-07-07 12:29:28,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:29:28,367 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:28,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1476221887, now seen corresponding path program 1 times [2020-07-07 12:29:28,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:28,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186643331] [2020-07-07 12:29:28,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:29:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:29:28,801 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:28,801 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:29:28,801 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:29:28,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 12:29:28,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:29:28 BoogieIcfgContainer [2020-07-07 12:29:28,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:29:28,832 INFO L168 Benchmark]: Toolchain (without parser) took 48780.49 ms. Allocated memory was 145.2 MB in the beginning and 888.1 MB in the end (delta: 742.9 MB). Free memory was 101.4 MB in the beginning and 243.8 MB in the end (delta: -142.5 MB). Peak memory consumption was 600.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:28,832 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 12:29:28,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.59 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 173.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:28,833 INFO L168 Benchmark]: Boogie Preprocessor took 117.16 ms. Allocated memory is still 203.4 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:28,834 INFO L168 Benchmark]: RCFGBuilder took 1395.99 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.1 MB in the beginning and 181.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:28,835 INFO L168 Benchmark]: TraceAbstraction took 46643.56 ms. Allocated memory was 236.5 MB in the beginning and 888.1 MB in the end (delta: 651.7 MB). Free memory was 179.7 MB in the beginning and 243.8 MB in the end (delta: -64.2 MB). Peak memory consumption was 587.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:28,838 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.59 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 173.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.16 ms. Allocated memory is still 203.4 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1395.99 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.1 MB in the beginning and 181.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46643.56 ms. Allocated memory was 236.5 MB in the beginning and 888.1 MB in the end (delta: 651.7 MB). Free memory was 179.7 MB in the beginning and 243.8 MB in the end (delta: -64.2 MB). Peak memory consumption was 587.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 249]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L255] int methAndRunningLastTime ; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L320] int retValue_acc ; [L323] retValue_acc = 1 [L324] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L113] CALL __utac_acc__Specification2_spec__1() [L260] methAndRunningLastTime = 0 [L113] RET __utac_acc__Specification2_spec__1() [L114] CALL test() [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp) [L718] CALL waterRise() [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 [L718] RET waterRise() [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___0) [L728] CALL changeMethaneLevel() [L181] COND FALSE !(\read(methaneLevelCritical)) [L184] methaneLevelCritical = 1 [L728] RET changeMethaneLevel() [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L738] CALL startSystem() [L920] systemActive = 1 [L738] RET startSystem() [L751] CALL timeShift() [L772] COND FALSE !(\read(pumpRunning)) [L779] COND TRUE \read(systemActive) [L781] CALL processEnvironment() [L801] int tmp ; [L804] COND TRUE ! pumpRunning [L806] CALL, EXPR isHighWaterLevel() [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; [L904] CALL, EXPR isHighWaterSensorDry() [L231] int retValue_acc ; [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); [L904] RET, EXPR isHighWaterSensorDry() [L904] tmp = isHighWaterSensorDry() [L906] COND FALSE !(\read(tmp)) [L909] tmp___0 = 1 [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); [L806] RET, EXPR isHighWaterLevel() [L806] tmp = isHighWaterLevel() [L808] COND TRUE \read(tmp) [L810] CALL activatePump() [L829] pumpRunning = 1 [L810] RET activatePump() [L781] RET processEnvironment() [L787] CALL __utac_acc__Specification2_spec__2() [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L270] RET, EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L274] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L274] RET, EXPR isPumpRunning() [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) [L277] COND FALSE !(\read(methAndRunningLastTime)) [L282] methAndRunningLastTime = 1 [L787] RET __utac_acc__Specification2_spec__2() [L751] RET timeShift() [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L738] CALL startSystem() [L920] systemActive = 1 [L738] RET startSystem() [L751] CALL timeShift() [L772] COND TRUE \read(pumpRunning) [L774] CALL lowerWaterLevel() [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 [L774] RET lowerWaterLevel() [L779] COND TRUE \read(systemActive) [L781] CALL processEnvironment() [L801] int tmp ; [L804] COND FALSE !(! pumpRunning) [L819] FCALL processEnvironment__wrappee__base() [L781] RET processEnvironment() [L787] CALL __utac_acc__Specification2_spec__2() [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L270] RET, EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L274] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L274] RET, EXPR isPumpRunning() [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) [L277] COND TRUE \read(methAndRunningLastTime) [L279] CALL __automaton_fail() [L249] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 46.5s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2277 SDtfs, 8327 SDslu, 4953 SDs, 0 SdLazy, 9822 SolverSat, 2309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 542 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1726 ImplicationChecksByTransitivity, 15.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1476occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 3325 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...