/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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:28:36,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:28:36,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:28:37,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:28:37,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:28:37,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:28:37,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:28:37,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:28:37,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:28:37,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:28:37,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:28:37,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:28:37,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:28:37,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:28:37,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:28:37,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:28:37,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:28:37,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:28:37,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:28:37,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:28:37,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:28:37,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:28:37,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:28:37,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:28:37,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:28:37,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:28:37,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:28:37,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:28:37,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:28:37,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:28:37,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:28:37,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:28:37,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:28:37,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:28:37,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:28:37,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:28:37,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:28:37,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:28:37,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:28:37,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:28:37,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:28:37,072 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 12:28:37,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:28:37,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:28:37,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:28:37,102 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:28:37,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:28:37,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:28:37,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:28:37,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:28:37,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:28:37,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:28:37,104 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:28:37,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:28:37,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:28:37,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:28:37,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:28:37,105 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:28:37,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:28:37,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:28:37,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:28:37,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:28:37,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:28:37,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:28:37,107 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:28:37,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:28:37,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:28:37,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:28:37,409 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:28:37,409 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:28:37,410 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-07-07 12:28:37,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfdb9a3e/20893a51e312467d9e3345604900844d/FLAGebdeea37d [2020-07-07 12:28:38,002 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:28:38,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-07-07 12:28:38,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfdb9a3e/20893a51e312467d9e3345604900844d/FLAGebdeea37d [2020-07-07 12:28:38,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfdb9a3e/20893a51e312467d9e3345604900844d [2020-07-07 12:28:38,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:28:38,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:28:38,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:28:38,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:28:38,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:28:38,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e395755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38, skipping insertion in model container [2020-07-07 12:28:38,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:28:38,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:28:38,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:28:38,784 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:28:38,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:28:38,911 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:28:38,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38 WrapperNode [2020-07-07 12:28:38,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:28:38,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:28:38,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:28:38,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:28:38,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (1/1) ... [2020-07-07 12:28:38,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:28:38,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:28:38,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:28:38,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:28:38,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (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 12:28:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:28:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:28:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:28:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:28:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:28:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:28:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:28:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:28:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:28:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:28:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:28:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:28:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:28:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:28:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:28:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:28:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:28:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:28:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:28:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:28:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:28:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:28:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:28:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:28:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:28:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:28:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:28:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:28:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:28:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:28:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:28:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:28:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:28:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:28:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:28:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:28:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-07 12:28:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-07 12:28:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:28:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:28:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:28:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:28:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-07 12:28:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:28:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:28:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:28:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:28:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:28:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:28:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:28:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:28:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:28:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:28:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:28:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:28:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:28:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:28:39,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:28:39,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:28:40,209 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:28:40,209 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:28:40,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:28:40 BoogieIcfgContainer [2020-07-07 12:28:40,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:28:40,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:28:40,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:28:40,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:28:40,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:28:38" (1/3) ... [2020-07-07 12:28:40,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b192d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:28:40, skipping insertion in model container [2020-07-07 12:28:40,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:28:38" (2/3) ... [2020-07-07 12:28:40,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b192d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:28:40, skipping insertion in model container [2020-07-07 12:28:40,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:28:40" (3/3) ... [2020-07-07 12:28:40,223 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-07-07 12:28:40,233 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:28:40,241 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:28:40,255 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:28:40,276 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:28:40,277 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:28:40,277 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:28:40,277 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:28:40,277 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:28:40,278 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:28:40,278 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:28:40,278 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:28:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-07-07 12:28:40,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-07 12:28:40,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:40,318 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 12:28:40,318 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:40,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:40,324 INFO L82 PathProgramCache]: Analyzing trace with hash -636857616, now seen corresponding path program 1 times [2020-07-07 12:28:40,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:40,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758791654] [2020-07-07 12:28:40,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:40,987 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:41,131 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 12:28:41,131 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:41,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758791654] [2020-07-07 12:28:41,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:41,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:28:41,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467024860] [2020-07-07 12:28:41,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:28:41,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:41,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:28:41,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:28:41,164 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2020-07-07 12:28:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:42,331 INFO L93 Difference]: Finished difference Result 432 states and 512 transitions. [2020-07-07 12:28:42,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 12:28:42,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-07-07 12:28:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:42,349 INFO L225 Difference]: With dead ends: 432 [2020-07-07 12:28:42,350 INFO L226 Difference]: Without dead ends: 281 [2020-07-07 12:28:42,355 INFO L675 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 [2020-07-07 12:28:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-07-07 12:28:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 236. [2020-07-07 12:28:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-07 12:28:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-07-07 12:28:42,505 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 148 [2020-07-07 12:28:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:42,508 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-07-07 12:28:42,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:28:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-07-07 12:28:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-07 12:28:42,520 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:42,520 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 12:28:42,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:28:42,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:42,521 INFO L82 PathProgramCache]: Analyzing trace with hash -394037270, now seen corresponding path program 1 times [2020-07-07 12:28:42,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:42,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433638261] [2020-07-07 12:28:42,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:42,929 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:43,056 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 12:28:43,057 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:43,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433638261] [2020-07-07 12:28:43,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:43,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 12:28:43,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723594422] [2020-07-07 12:28:43,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 12:28:43,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:43,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 12:28:43,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:28:43,062 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 5 states. [2020-07-07 12:28:43,687 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:28:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:44,462 INFO L93 Difference]: Finished difference Result 361 states and 407 transitions. [2020-07-07 12:28:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 12:28:44,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-07 12:28:44,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:44,467 INFO L225 Difference]: With dead ends: 361 [2020-07-07 12:28:44,467 INFO L226 Difference]: Without dead ends: 270 [2020-07-07 12:28:44,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:28:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-07-07 12:28:44,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 226. [2020-07-07 12:28:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-07 12:28:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-07-07 12:28:44,528 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 149 [2020-07-07 12:28:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:44,528 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-07-07 12:28:44,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 12:28:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-07-07 12:28:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-07 12:28:44,531 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:44,531 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] [2020-07-07 12:28:44,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:28:44,531 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:44,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:44,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1798175291, now seen corresponding path program 1 times [2020-07-07 12:28:44,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:44,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483822445] [2020-07-07 12:28:44,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:44,925 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:45,119 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 12:28:45,120 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:45,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483822445] [2020-07-07 12:28:45,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:45,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:28:45,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563108144] [2020-07-07 12:28:45,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:28:45,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:45,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:28:45,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:28:45,122 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 10 states. [2020-07-07 12:28:45,580 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:45,900 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:28:46,183 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-07 12:28:46,426 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:46,726 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:46,948 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:48,192 INFO L93 Difference]: Finished difference Result 381 states and 433 transitions. [2020-07-07 12:28:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:28:48,194 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-07-07 12:28:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:48,198 INFO L225 Difference]: With dead ends: 381 [2020-07-07 12:28:48,199 INFO L226 Difference]: Without dead ends: 270 [2020-07-07 12:28:48,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-07-07 12:28:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-07-07 12:28:48,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 226. [2020-07-07 12:28:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-07 12:28:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 241 transitions. [2020-07-07 12:28:48,289 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 241 transitions. Word has length 158 [2020-07-07 12:28:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:48,289 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 241 transitions. [2020-07-07 12:28:48,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:28:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 241 transitions. [2020-07-07 12:28:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-07 12:28:48,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:48,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:28:48,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:28:48,293 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:48,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:48,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1932582056, now seen corresponding path program 1 times [2020-07-07 12:28:48,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:48,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151168127] [2020-07-07 12:28:48,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,634 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:48,806 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 12:28:48,807 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:48,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151168127] [2020-07-07 12:28:48,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:48,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 12:28:48,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309836686] [2020-07-07 12:28:48,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 12:28:48,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:48,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 12:28:48,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:28:48,810 INFO L87 Difference]: Start difference. First operand 226 states and 241 transitions. Second operand 7 states. [2020-07-07 12:28:49,477 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:50,998 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:28:51,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:51,497 INFO L93 Difference]: Finished difference Result 511 states and 588 transitions. [2020-07-07 12:28:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:28:51,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-07-07 12:28:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:51,502 INFO L225 Difference]: With dead ends: 511 [2020-07-07 12:28:51,502 INFO L226 Difference]: Without dead ends: 400 [2020-07-07 12:28:51,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:28:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-07-07 12:28:51,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 329. [2020-07-07 12:28:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-07-07 12:28:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 356 transitions. [2020-07-07 12:28:51,613 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 356 transitions. Word has length 166 [2020-07-07 12:28:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:51,613 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 356 transitions. [2020-07-07 12:28:51,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 12:28:51,614 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 356 transitions. [2020-07-07 12:28:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-07 12:28:51,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:51,616 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] [2020-07-07 12:28:51,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:28:51,617 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:51,617 INFO L82 PathProgramCache]: Analyzing trace with hash 171472501, now seen corresponding path program 1 times [2020-07-07 12:28:51,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:51,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769593406] [2020-07-07 12:28:51,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,899 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:52,105 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 12:28:52,105 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:52,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769593406] [2020-07-07 12:28:52,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:52,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:28:52,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028392998] [2020-07-07 12:28:52,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:28:52,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:52,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:28:52,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:28:52,110 INFO L87 Difference]: Start difference. First operand 329 states and 356 transitions. Second operand 10 states. [2020-07-07 12:28:52,649 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:54,033 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:54,266 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:54,513 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:54,736 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:54,963 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:55,184 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:55,436 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:55,741 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:28:56,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:28:56,548 INFO L93 Difference]: Finished difference Result 821 states and 962 transitions. [2020-07-07 12:28:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 12:28:56,549 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-07-07 12:28:56,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:28:56,555 INFO L225 Difference]: With dead ends: 821 [2020-07-07 12:28:56,555 INFO L226 Difference]: Without dead ends: 607 [2020-07-07 12:28:56,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-07-07 12:28:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-07-07 12:28:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 497. [2020-07-07 12:28:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-07-07 12:28:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 543 transitions. [2020-07-07 12:28:56,747 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 543 transitions. Word has length 190 [2020-07-07 12:28:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:28:56,747 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 543 transitions. [2020-07-07 12:28:56,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:28:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 543 transitions. [2020-07-07 12:28:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-07 12:28:56,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:28:56,751 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] [2020-07-07 12:28:56,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:28:56,751 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:28:56,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:28:56,752 INFO L82 PathProgramCache]: Analyzing trace with hash 320544540, now seen corresponding path program 1 times [2020-07-07 12:28:56,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:28:56,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831716085] [2020-07-07 12:28:56,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:28:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,048 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:28:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:28:57,225 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 12:28:57,226 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:28:57,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831716085] [2020-07-07 12:28:57,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:28:57,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:28:57,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147868178] [2020-07-07 12:28:57,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:28:57,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:28:57,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:28:57,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:28:57,231 INFO L87 Difference]: Start difference. First operand 497 states and 543 transitions. Second operand 11 states. [2020-07-07 12:28:57,706 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:59,050 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:28:59,266 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:28:59,502 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:28:59,730 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:00,028 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:00,288 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:29:00,524 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:00,763 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:01,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:01,583 INFO L93 Difference]: Finished difference Result 1050 states and 1217 transitions. [2020-07-07 12:29:01,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-07 12:29:01,584 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 195 [2020-07-07 12:29:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:01,591 INFO L225 Difference]: With dead ends: 1050 [2020-07-07 12:29:01,591 INFO L226 Difference]: Without dead ends: 668 [2020-07-07 12:29:01,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2020-07-07 12:29:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-07-07 12:29:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 495. [2020-07-07 12:29:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-07-07 12:29:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 539 transitions. [2020-07-07 12:29:01,744 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 539 transitions. Word has length 195 [2020-07-07 12:29:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:01,745 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 539 transitions. [2020-07-07 12:29:01,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:29:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 539 transitions. [2020-07-07 12:29:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-07 12:29:01,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:01,748 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] [2020-07-07 12:29:01,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:29:01,748 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:01,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:01,749 INFO L82 PathProgramCache]: Analyzing trace with hash 306083937, now seen corresponding path program 1 times [2020-07-07 12:29:01,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:01,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80286903] [2020-07-07 12:29:01,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:01,986 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:02,181 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 12:29:02,182 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:02,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80286903] [2020-07-07 12:29:02,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:02,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:29:02,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369042643] [2020-07-07 12:29:02,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:29:02,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:02,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:29:02,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:29:02,185 INFO L87 Difference]: Start difference. First operand 495 states and 539 transitions. Second operand 11 states. [2020-07-07 12:29:03,322 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:03,559 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:29:03,818 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-07 12:29:04,052 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:04,292 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:04,519 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:05,452 INFO L93 Difference]: Finished difference Result 1058 states and 1232 transitions. [2020-07-07 12:29:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 12:29:05,453 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-07-07 12:29:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:05,460 INFO L225 Difference]: With dead ends: 1058 [2020-07-07 12:29:05,461 INFO L226 Difference]: Without dead ends: 678 [2020-07-07 12:29:05,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-07-07 12:29:05,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-07-07 12:29:05,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 511. [2020-07-07 12:29:05,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-07-07 12:29:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 555 transitions. [2020-07-07 12:29:05,664 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 555 transitions. Word has length 196 [2020-07-07 12:29:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:05,664 INFO L479 AbstractCegarLoop]: Abstraction has 511 states and 555 transitions. [2020-07-07 12:29:05,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:29:05,665 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 555 transitions. [2020-07-07 12:29:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-07 12:29:05,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:05,667 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] [2020-07-07 12:29:05,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:29:05,667 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:05,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:05,668 INFO L82 PathProgramCache]: Analyzing trace with hash -833709887, now seen corresponding path program 1 times [2020-07-07 12:29:05,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:05,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112399695] [2020-07-07 12:29:05,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:05,996 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:06,205 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 12:29:06,206 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:06,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112399695] [2020-07-07 12:29:06,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:06,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:29:06,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926225711] [2020-07-07 12:29:06,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:29:06,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:06,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:29:06,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:29:06,208 INFO L87 Difference]: Start difference. First operand 511 states and 555 transitions. Second operand 14 states. [2020-07-07 12:29:06,766 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:29:07,004 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:29:07,238 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:07,479 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:07,703 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:08,449 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:08,689 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:08,939 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:09,190 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:29:09,415 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:29:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:10,591 INFO L93 Difference]: Finished difference Result 1096 states and 1286 transitions. [2020-07-07 12:29:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 12:29:10,591 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 196 [2020-07-07 12:29:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:10,595 INFO L225 Difference]: With dead ends: 1096 [2020-07-07 12:29:10,596 INFO L226 Difference]: Without dead ends: 700 [2020-07-07 12:29:10,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-07-07 12:29:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-07 12:29:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 523. [2020-07-07 12:29:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-07 12:29:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 567 transitions. [2020-07-07 12:29:10,745 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 567 transitions. Word has length 196 [2020-07-07 12:29:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:10,746 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 567 transitions. [2020-07-07 12:29:10,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:29:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 567 transitions. [2020-07-07 12:29:10,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-07 12:29:10,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:10,748 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] [2020-07-07 12:29:10,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:29:10,748 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:10,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:10,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1330134718, now seen corresponding path program 1 times [2020-07-07 12:29:10,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:10,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366985800] [2020-07-07 12:29:10,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,024 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:11,165 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 12:29:11,165 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:11,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366985800] [2020-07-07 12:29:11,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:11,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 12:29:11,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184578931] [2020-07-07 12:29:11,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 12:29:11,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:11,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 12:29:11,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 12:29:11,168 INFO L87 Difference]: Start difference. First operand 523 states and 567 transitions. Second operand 8 states. [2020-07-07 12:29:11,635 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:12,246 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:14,342 INFO L93 Difference]: Finished difference Result 1557 states and 1867 transitions. [2020-07-07 12:29:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-07 12:29:14,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 196 [2020-07-07 12:29:14,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:14,351 INFO L225 Difference]: With dead ends: 1557 [2020-07-07 12:29:14,351 INFO L226 Difference]: Without dead ends: 1149 [2020-07-07 12:29:14,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-07-07 12:29:14,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2020-07-07 12:29:14,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 917. [2020-07-07 12:29:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-07-07 12:29:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1023 transitions. [2020-07-07 12:29:14,618 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1023 transitions. Word has length 196 [2020-07-07 12:29:14,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:14,618 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1023 transitions. [2020-07-07 12:29:14,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 12:29:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1023 transitions. [2020-07-07 12:29:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-07 12:29:14,621 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:14,621 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] [2020-07-07 12:29:14,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:29:14,622 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:14,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1497513317, now seen corresponding path program 1 times [2020-07-07 12:29:14,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:14,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829232777] [2020-07-07 12:29:14,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,874 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:29:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:29:15,039 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 12:29:15,039 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:15,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829232777] [2020-07-07 12:29:15,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:29:15,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 12:29:15,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101484937] [2020-07-07 12:29:15,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 12:29:15,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:29:15,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 12:29:15,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-07 12:29:15,042 INFO L87 Difference]: Start difference. First operand 917 states and 1023 transitions. Second operand 8 states. [2020-07-07 12:29:15,540 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:29:17,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:29:17,680 INFO L93 Difference]: Finished difference Result 1759 states and 2100 transitions. [2020-07-07 12:29:17,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-07 12:29:17,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-07-07 12:29:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:29:17,690 INFO L225 Difference]: With dead ends: 1759 [2020-07-07 12:29:17,690 INFO L226 Difference]: Without dead ends: 1756 [2020-07-07 12:29:17,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-07-07 12:29:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2020-07-07 12:29:18,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1420. [2020-07-07 12:29:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1420 states. [2020-07-07 12:29:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1599 transitions. [2020-07-07 12:29:18,285 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1599 transitions. Word has length 201 [2020-07-07 12:29:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:29:18,286 INFO L479 AbstractCegarLoop]: Abstraction has 1420 states and 1599 transitions. [2020-07-07 12:29:18,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 12:29:18,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1599 transitions. [2020-07-07 12:29:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-07-07 12:29:18,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:29:18,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:18,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:29:18,291 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:29:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:29:18,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1505464834, now seen corresponding path program 1 times [2020-07-07 12:29:18,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:29:18,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421230335] [2020-07-07 12:29:18,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:29:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:29:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:29:18,780 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:29:18,780 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:29:18,781 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:29:18,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 12:29:18,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:29:18 BoogieIcfgContainer [2020-07-07 12:29:18,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:29:18,811 INFO L168 Benchmark]: Toolchain (without parser) took 40491.28 ms. Allocated memory was 146.8 MB in the beginning and 758.6 MB in the end (delta: 611.8 MB). Free memory was 104.1 MB in the beginning and 484.8 MB in the end (delta: -380.7 MB). Peak memory consumption was 231.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:18,811 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:29:18,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.42 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 103.8 MB in the beginning and 174.3 MB in the end (delta: -70.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:18,813 INFO L168 Benchmark]: Boogie Preprocessor took 83.11 ms. Allocated memory is still 205.5 MB. Free memory was 174.3 MB in the beginning and 170.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:18,813 INFO L168 Benchmark]: RCFGBuilder took 1219.97 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 169.6 MB in the beginning and 174.1 MB in the end (delta: -4.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:18,814 INFO L168 Benchmark]: TraceAbstraction took 38592.30 ms. Allocated memory was 234.9 MB in the beginning and 758.6 MB in the end (delta: 523.8 MB). Free memory was 174.1 MB in the beginning and 484.8 MB in the end (delta: -310.6 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:29:18,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 591.42 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 103.8 MB in the beginning and 174.3 MB in the end (delta: -70.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.11 ms. Allocated memory is still 205.5 MB. Free memory was 174.3 MB in the beginning and 170.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1219.97 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 169.6 MB in the beginning and 174.1 MB in the end (delta: -4.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38592.30 ms. Allocated memory was 234.9 MB in the beginning and 758.6 MB in the end (delta: 523.8 MB). Free memory was 174.1 MB in the beginning and 484.8 MB in the end (delta: -310.6 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 284]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L679] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; [L257] int retValue_acc ; [L258] int tmp ; [L262] FCALL select_helpers() [L263] FCALL select_features() [L264] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L264] RET, EXPR valid_product() [L264] tmp = valid_product() [L266] COND TRUE \read(tmp) [L268] FCALL setup() [L269] CALL runTest() [L250] CALL __utac_acc__Specification2_spec__1() [L881] methAndRunningLastTime = 0 [L250] RET __utac_acc__Specification2_spec__1() [L251] CALL test() [L446] int splverifierCounter ; [L447] int tmp ; [L448] int tmp___0 ; [L449] int tmp___1 ; [L450] int tmp___2 ; [L453] splverifierCounter = 0 [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND TRUE \read(tmp) [L467] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L467] RET waterRise() [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp___0) [L477] CALL changeMethaneLevel() [L115] COND FALSE !(\read(methaneLevelCritical)) [L118] methaneLevelCritical = 1 [L477] RET changeMethaneLevel() [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L498] CALL timeShift() [L300] COND FALSE !(\read(pumpRunning)) [L307] COND TRUE \read(systemActive) [L309] CALL processEnvironment() [L329] int tmp ; [L332] COND TRUE ! pumpRunning [L334] CALL, EXPR isHighWaterLevel() [L426] int retValue_acc ; [L427] int tmp ; [L428] int tmp___0 ; [L432] CALL, EXPR isHighWaterSensorDry() [L165] int retValue_acc ; [L168] COND FALSE !(waterLevel < 2) [L172] retValue_acc = 0 [L173] return (retValue_acc); [L432] RET, EXPR isHighWaterSensorDry() [L432] tmp = isHighWaterSensorDry() [L434] COND FALSE !(\read(tmp)) [L437] tmp___0 = 1 [L439] retValue_acc = tmp___0 [L440] return (retValue_acc); [L334] RET, EXPR isHighWaterLevel() [L334] tmp = isHighWaterLevel() [L336] COND TRUE \read(tmp) [L338] CALL activatePump() [L357] pumpRunning = 1 [L338] RET activatePump() [L309] RET processEnvironment() [L315] CALL __utac_acc__Specification2_spec__2() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] RET, EXPR isMethaneLevelCritical() [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L895] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) [L898] COND FALSE !(\read(methAndRunningLastTime)) [L903] methAndRunningLastTime = 1 [L315] RET __utac_acc__Specification2_spec__2() [L498] RET timeShift() [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND FALSE !(\read(tmp)) [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp___0)) [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L498] CALL timeShift() [L300] COND TRUE \read(pumpRunning) [L302] CALL lowerWaterLevel() [L91] COND TRUE waterLevel > 0 [L92] waterLevel = waterLevel - 1 [L302] RET lowerWaterLevel() [L307] COND TRUE \read(systemActive) [L309] CALL processEnvironment() [L329] int tmp ; [L332] COND FALSE !(! pumpRunning) [L347] FCALL processEnvironment__wrappee__base() [L309] RET processEnvironment() [L315] CALL __utac_acc__Specification2_spec__2() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] RET, EXPR isMethaneLevelCritical() [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L895] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) [L898] COND TRUE \read(methAndRunningLastTime) [L900] CALL __automaton_fail() [L284] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.5s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 30.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2212 SDtfs, 5751 SDslu, 4208 SDs, 0 SdLazy, 7664 SolverSat, 1396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 273 SyntacticMatches, 2 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1420occurred 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: 1.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 1399 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...