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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:36:13,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:36:13,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:36:13,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:36:13,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:36:13,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:36:13,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:36:13,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:36:13,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:36:13,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:36:13,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:36:13,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:36:13,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:36:13,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:36:13,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:36:13,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:36:13,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:36:13,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:36:13,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:36:13,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:36:13,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:36:13,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:36:13,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:36:13,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:36:13,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:36:13,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:36:13,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:36:13,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:36:13,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:36:13,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:36:13,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:36:13,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:36:13,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:36:13,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:36:13,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:36:13,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:36:13,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:36:13,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:36:13,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:36:13,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:36:13,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:36:13,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:36:13,994 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:36:13,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:36:13,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:36:13,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:36:13,997 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:36:13,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:36:13,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:36:13,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:36:13,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:36:13,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:36:13,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:36:13,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:36:13,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:36:13,999 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:36:13,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:36:13,999 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:36:14,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:36:14,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:36:14,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:36:14,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:36:14,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:36:14,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:14,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:36:14,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:36:14,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:36:14,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:36:14,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:36:14,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:36:14,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:36:14,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:36:14,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:36:14,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:36:14,298 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:36:14,299 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:36:14,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-14 23:36:14,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643c09860/1c2b437ac7bf442eabde5177b3134461/FLAGbbf2bf287 [2019-10-14 23:36:14,949 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:36:14,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-14 23:36:14,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643c09860/1c2b437ac7bf442eabde5177b3134461/FLAGbbf2bf287 [2019-10-14 23:36:15,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643c09860/1c2b437ac7bf442eabde5177b3134461 [2019-10-14 23:36:15,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:36:15,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:36:15,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:15,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:36:15,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:36:15,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:15,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a11b6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15, skipping insertion in model container [2019-10-14 23:36:15,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:15,270 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:36:15,316 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:36:15,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:15,787 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:36:15,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:15,934 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:36:15,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15 WrapperNode [2019-10-14 23:36:15,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:15,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:36:15,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:36:15,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:36:15,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:15,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:15,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:15,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:16,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:16,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:16,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (1/1) ... [2019-10-14 23:36:16,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:36:16,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:36:16,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:36:16,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:36:16,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (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 [2019-10-14 23:36:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:36:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:36:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:36:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:36:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:36:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:36:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:36:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:36:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:36:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:36:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:36:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:36:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:36:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:36:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:36:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:36:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:36:16,124 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:36:16,124 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:36:16,124 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:36:16,124 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:36:16,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:36:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:36:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:36:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:36:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:36:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:36:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-14 23:36:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:36:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:36:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:36:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:36:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:36:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:36:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:36:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:36:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:36:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:36:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:36:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:36:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:36:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:36:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:36:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:36:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:36:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:36:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:36:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:36:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:36:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:36:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:36:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:36:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:36:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:36:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:36:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:36:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:36:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:36:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:36:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:36:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:36:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:36:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:36:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:36:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:36:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:36:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:36:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:36:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:36:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:36:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:36:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:36:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:36:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:36:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:36:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:36:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:36:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:36:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:36:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:36:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:36:17,477 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:36:17,478 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:36:17,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:17 BoogieIcfgContainer [2019-10-14 23:36:17,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:36:17,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:36:17,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:36:17,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:36:17,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:36:15" (1/3) ... [2019-10-14 23:36:17,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196fd362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:17, skipping insertion in model container [2019-10-14 23:36:17,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:15" (2/3) ... [2019-10-14 23:36:17,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196fd362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:17, skipping insertion in model container [2019-10-14 23:36:17,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:17" (3/3) ... [2019-10-14 23:36:17,490 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-10-14 23:36:17,500 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:36:17,512 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:36:17,524 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:36:17,549 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:36:17,549 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:36:17,549 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:36:17,550 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:36:17,550 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:36:17,550 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:36:17,550 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:36:17,550 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:36:17,575 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-10-14 23:36:17,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-14 23:36:17,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:17,588 INFO L380 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] [2019-10-14 23:36:17,590 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:17,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:17,596 INFO L82 PathProgramCache]: Analyzing trace with hash 694173544, now seen corresponding path program 1 times [2019-10-14 23:36:17,606 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:17,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585738249] [2019-10-14 23:36:17,607 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:17,607 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:17,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,347 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:18,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:18,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585738249] [2019-10-14 23:36:18,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:18,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:36:18,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296888367] [2019-10-14 23:36:18,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:36:18,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:18,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:36:18,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:18,476 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-10-14 23:36:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:19,919 INFO L93 Difference]: Finished difference Result 347 states and 448 transitions. [2019-10-14 23:36:19,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:36:19,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-14 23:36:19,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:19,948 INFO L225 Difference]: With dead ends: 347 [2019-10-14 23:36:19,948 INFO L226 Difference]: Without dead ends: 193 [2019-10-14 23:36:19,956 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-14 23:36:20,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 155. [2019-10-14 23:36:20,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-14 23:36:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 182 transitions. [2019-10-14 23:36:20,082 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 182 transitions. Word has length 51 [2019-10-14 23:36:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:20,084 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 182 transitions. [2019-10-14 23:36:20,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:36:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 182 transitions. [2019-10-14 23:36:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:36:20,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:20,097 INFO L380 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] [2019-10-14 23:36:20,097 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:20,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:20,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1863175654, now seen corresponding path program 1 times [2019-10-14 23:36:20,099 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:20,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996592022] [2019-10-14 23:36:20,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:20,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:20,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,549 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:20,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996592022] [2019-10-14 23:36:20,617 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:20,618 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:36:20,618 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464955846] [2019-10-14 23:36:20,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:36:20,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:20,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:36:20,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:36:20,621 INFO L87 Difference]: Start difference. First operand 155 states and 182 transitions. Second operand 5 states. [2019-10-14 23:36:21,262 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:22,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:22,369 INFO L93 Difference]: Finished difference Result 282 states and 347 transitions. [2019-10-14 23:36:22,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:36:22,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-14 23:36:22,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:22,372 INFO L225 Difference]: With dead ends: 282 [2019-10-14 23:36:22,373 INFO L226 Difference]: Without dead ends: 183 [2019-10-14 23:36:22,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:36:22,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-14 23:36:22,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 146. [2019-10-14 23:36:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-14 23:36:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 170 transitions. [2019-10-14 23:36:22,419 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 170 transitions. Word has length 52 [2019-10-14 23:36:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:22,419 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 170 transitions. [2019-10-14 23:36:22,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:36:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 170 transitions. [2019-10-14 23:36:22,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:36:22,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:22,421 INFO L380 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] [2019-10-14 23:36:22,421 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:22,422 INFO L82 PathProgramCache]: Analyzing trace with hash 284161781, now seen corresponding path program 1 times [2019-10-14 23:36:22,422 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:22,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727813450] [2019-10-14 23:36:22,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:22,423 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:22,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,780 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:22,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727813450] [2019-10-14 23:36:22,857 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:22,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:36:22,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983670284] [2019-10-14 23:36:22,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:36:22,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:22,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:36:22,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:36:22,859 INFO L87 Difference]: Start difference. First operand 146 states and 170 transitions. Second operand 9 states. [2019-10-14 23:36:23,317 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:23,704 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:23,977 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:24,242 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:25,186 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:27,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:27,357 INFO L93 Difference]: Finished difference Result 494 states and 617 transitions. [2019-10-14 23:36:27,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:36:27,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-14 23:36:27,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:27,363 INFO L225 Difference]: With dead ends: 494 [2019-10-14 23:36:27,363 INFO L226 Difference]: Without dead ends: 376 [2019-10-14 23:36:27,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:36:27,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-14 23:36:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 303. [2019-10-14 23:36:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2019-10-14 23:36:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 366 transitions. [2019-10-14 23:36:27,448 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 366 transitions. Word has length 57 [2019-10-14 23:36:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:27,448 INFO L462 AbstractCegarLoop]: Abstraction has 303 states and 366 transitions. [2019-10-14 23:36:27,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:36:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 366 transitions. [2019-10-14 23:36:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-14 23:36:27,450 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:27,450 INFO L380 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] [2019-10-14 23:36:27,451 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:27,451 INFO L82 PathProgramCache]: Analyzing trace with hash 367003092, now seen corresponding path program 1 times [2019-10-14 23:36:27,451 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:27,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821392913] [2019-10-14 23:36:27,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:27,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:27,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,760 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:27,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821392913] [2019-10-14 23:36:27,869 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:27,869 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:36:27,869 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942988571] [2019-10-14 23:36:27,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:36:27,870 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:36:27,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:36:27,871 INFO L87 Difference]: Start difference. First operand 303 states and 366 transitions. Second operand 9 states. [2019-10-14 23:36:28,373 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:29,631 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:30,007 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:30,330 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:30,701 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:32,472 INFO L93 Difference]: Finished difference Result 974 states and 1274 transitions. [2019-10-14 23:36:32,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-14 23:36:32,473 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-10-14 23:36:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:32,480 INFO L225 Difference]: With dead ends: 974 [2019-10-14 23:36:32,481 INFO L226 Difference]: Without dead ends: 699 [2019-10-14 23:36:32,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:36:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2019-10-14 23:36:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 554. [2019-10-14 23:36:32,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-14 23:36:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 672 transitions. [2019-10-14 23:36:32,627 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 672 transitions. Word has length 62 [2019-10-14 23:36:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:32,627 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 672 transitions. [2019-10-14 23:36:32,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:36:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 672 transitions. [2019-10-14 23:36:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-14 23:36:32,629 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:32,630 INFO L380 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] [2019-10-14 23:36:32,630 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:32,630 INFO L82 PathProgramCache]: Analyzing trace with hash -612062288, now seen corresponding path program 1 times [2019-10-14 23:36:32,631 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:32,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583423808] [2019-10-14 23:36:32,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:32,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:32,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,959 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:33,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583423808] [2019-10-14 23:36:33,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:33,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:33,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976961950] [2019-10-14 23:36:33,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:33,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:33,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:33,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:33,071 INFO L87 Difference]: Start difference. First operand 554 states and 672 transitions. Second operand 10 states. [2019-10-14 23:36:33,561 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:34,751 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:35,076 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:35,361 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:36,227 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:37,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:37,629 INFO L93 Difference]: Finished difference Result 1517 states and 2050 transitions. [2019-10-14 23:36:37,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:36:37,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-10-14 23:36:37,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:37,636 INFO L225 Difference]: With dead ends: 1517 [2019-10-14 23:36:37,637 INFO L226 Difference]: Without dead ends: 991 [2019-10-14 23:36:37,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-10-14 23:36:37,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2019-10-14 23:36:37,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 785. [2019-10-14 23:36:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-10-14 23:36:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 947 transitions. [2019-10-14 23:36:37,788 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 947 transitions. Word has length 66 [2019-10-14 23:36:37,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:37,789 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 947 transitions. [2019-10-14 23:36:37,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:37,789 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 947 transitions. [2019-10-14 23:36:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:36:37,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:37,792 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:36:37,792 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:37,793 INFO L82 PathProgramCache]: Analyzing trace with hash 637474211, now seen corresponding path program 1 times [2019-10-14 23:36:37,793 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:37,793 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113572608] [2019-10-14 23:36:37,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:37,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:37,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,050 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:36:38,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113572608] [2019-10-14 23:36:38,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:38,207 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:38,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971491956] [2019-10-14 23:36:38,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:38,208 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:38,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:38,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:38,209 INFO L87 Difference]: Start difference. First operand 785 states and 947 transitions. Second operand 10 states. [2019-10-14 23:36:39,521 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:39,816 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:36:40,142 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:40,410 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:41,833 INFO L93 Difference]: Finished difference Result 1830 states and 2467 transitions. [2019-10-14 23:36:41,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:36:41,834 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-10-14 23:36:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:41,843 INFO L225 Difference]: With dead ends: 1830 [2019-10-14 23:36:41,843 INFO L226 Difference]: Without dead ends: 1073 [2019-10-14 23:36:41,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:36:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2019-10-14 23:36:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 811. [2019-10-14 23:36:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-10-14 23:36:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 975 transitions. [2019-10-14 23:36:42,044 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 975 transitions. Word has length 104 [2019-10-14 23:36:42,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:42,044 INFO L462 AbstractCegarLoop]: Abstraction has 811 states and 975 transitions. [2019-10-14 23:36:42,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 975 transitions. [2019-10-14 23:36:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:36:42,049 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:42,049 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:36:42,049 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:42,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:42,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1729220383, now seen corresponding path program 1 times [2019-10-14 23:36:42,050 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:42,050 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806928147] [2019-10-14 23:36:42,050 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:42,050 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:42,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,350 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:36:42,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806928147] [2019-10-14 23:36:42,524 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:42,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:36:42,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092084785] [2019-10-14 23:36:42,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:36:42,526 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:42,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:36:42,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:42,527 INFO L87 Difference]: Start difference. First operand 811 states and 975 transitions. Second operand 12 states. [2019-10-14 23:36:43,376 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:43,697 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:43,964 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:44,905 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:45,207 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:45,480 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:47,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:47,005 INFO L93 Difference]: Finished difference Result 1876 states and 2515 transitions. [2019-10-14 23:36:47,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:36:47,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 104 [2019-10-14 23:36:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:47,016 INFO L225 Difference]: With dead ends: 1876 [2019-10-14 23:36:47,017 INFO L226 Difference]: Without dead ends: 1093 [2019-10-14 23:36:47,020 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:36:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-10-14 23:36:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 827. [2019-10-14 23:36:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-14 23:36:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 991 transitions. [2019-10-14 23:36:47,189 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 991 transitions. Word has length 104 [2019-10-14 23:36:47,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:47,190 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 991 transitions. [2019-10-14 23:36:47,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:36:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 991 transitions. [2019-10-14 23:36:47,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:36:47,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:47,193 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:36:47,193 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:47,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:47,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1969760512, now seen corresponding path program 1 times [2019-10-14 23:36:47,194 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:47,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444146051] [2019-10-14 23:36:47,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:47,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:47,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,557 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:36:47,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444146051] [2019-10-14 23:36:47,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:47,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:47,736 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972121075] [2019-10-14 23:36:47,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:47,737 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:47,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:47,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:47,738 INFO L87 Difference]: Start difference. First operand 827 states and 991 transitions. Second operand 8 states. [2019-10-14 23:36:48,271 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:48,868 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:52,198 INFO L93 Difference]: Finished difference Result 2807 states and 3809 transitions. [2019-10-14 23:36:52,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-14 23:36:52,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-10-14 23:36:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:52,212 INFO L225 Difference]: With dead ends: 2807 [2019-10-14 23:36:52,212 INFO L226 Difference]: Without dead ends: 2008 [2019-10-14 23:36:52,217 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-10-14 23:36:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2019-10-14 23:36:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1651. [2019-10-14 23:36:52,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1651 states. [2019-10-14 23:36:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2005 transitions. [2019-10-14 23:36:52,622 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2005 transitions. Word has length 104 [2019-10-14 23:36:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:52,623 INFO L462 AbstractCegarLoop]: Abstraction has 1651 states and 2005 transitions. [2019-10-14 23:36:52,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2005 transitions. [2019-10-14 23:36:52,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-14 23:36:52,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:52,628 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:36:52,629 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:52,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:52,629 INFO L82 PathProgramCache]: Analyzing trace with hash 672707866, now seen corresponding path program 1 times [2019-10-14 23:36:52,629 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:52,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50241217] [2019-10-14 23:36:52,630 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:52,630 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:52,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,949 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat