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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:13,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:13,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:13,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:13,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:13,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:13,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:13,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:13,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:13,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:13,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:13,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:13,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:13,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:13,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:13,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:13,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:13,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:13,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:13,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:13,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:13,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:13,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:13,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:13,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:13,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:13,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:13,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:13,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:13,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:13,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:13,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:13,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:13,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:13,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:13,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:13,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:13,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:13,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:13,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:13,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:13,307 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:13,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:13,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:13,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:13,324 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:13,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:13,324 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:13,325 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:13,325 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:13,326 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:13,326 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:13,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:13,327 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:13,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:13,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:13,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:13,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:13,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:13,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:13,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:13,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:13,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:13,330 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:13,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:13,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:13,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:13,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:13,331 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:13,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:13,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:13,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:13,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:13,371 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:13,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:13,376 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:13,376 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:13,377 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-09-20 13:30:13,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845df40d2/c17bf3336ff744eeb7bd96fb76bbe2e7/FLAG354de23cf [2019-09-20 13:30:13,911 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:13,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-09-20 13:30:13,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845df40d2/c17bf3336ff744eeb7bd96fb76bbe2e7/FLAG354de23cf [2019-09-20 13:30:14,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845df40d2/c17bf3336ff744eeb7bd96fb76bbe2e7 [2019-09-20 13:30:14,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:14,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:14,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:14,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:14,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:14,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:14,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aceb178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14, skipping insertion in model container [2019-09-20 13:30:14,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:14,281 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:14,352 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:14,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:14,829 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:14,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:14,968 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:14,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14 WrapperNode [2019-09-20 13:30:14,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:14,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:14,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:14,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:14,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:14,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:15,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:15,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:15,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:15,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:15,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:15,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:15,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:15,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:15,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:15,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:15,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:15,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:15,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:15,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:16,146 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:16,146 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:16,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:16 BoogieIcfgContainer [2019-09-20 13:30:16,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:16,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:16,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:16,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:16,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:14" (1/3) ... [2019-09-20 13:30:16,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3049f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:16, skipping insertion in model container [2019-09-20 13:30:16,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14" (2/3) ... [2019-09-20 13:30:16,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3049f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:16, skipping insertion in model container [2019-09-20 13:30:16,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:16" (3/3) ... [2019-09-20 13:30:16,156 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2019-09-20 13:30:16,165 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:16,173 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:16,187 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:16,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:16,209 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:16,209 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:16,209 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:16,209 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:16,210 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:16,210 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:16,210 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:16,228 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-09-20 13:30:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:16,241 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:16,242 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:16,245 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,249 INFO L82 PathProgramCache]: Analyzing trace with hash -154299971, now seen corresponding path program 1 times [2019-09-20 13:30:16,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:16,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:16,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:16,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:16,308 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:16,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:16,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:16,605 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:16,610 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:16,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:16,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:16,628 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-09-20 13:30:16,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:16,657 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2019-09-20 13:30:16,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:16,658 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:16,672 INFO L225 Difference]: With dead ends: 144 [2019-09-20 13:30:16,672 INFO L226 Difference]: Without dead ends: 133 [2019-09-20 13:30:16,674 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-09-20 13:30:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-09-20 13:30:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-20 13:30:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2019-09-20 13:30:16,728 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 51 [2019-09-20 13:30:16,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:16,728 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2019-09-20 13:30:16,729 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2019-09-20 13:30:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:16,733 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:16,734 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:16,734 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,737 INFO L82 PathProgramCache]: Analyzing trace with hash 401693438, now seen corresponding path program 1 times [2019-09-20 13:30:16,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:16,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:16,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:16,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:16,742 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:16,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:16,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:16,922 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:16,924 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:16,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:16,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:16,926 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2019-09-20 13:30:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:16,954 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2019-09-20 13:30:16,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:16,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:16,959 INFO L225 Difference]: With dead ends: 124 [2019-09-20 13:30:16,959 INFO L226 Difference]: Without dead ends: 124 [2019-09-20 13:30:16,960 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:16,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-20 13:30:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-20 13:30:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-20 13:30:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2019-09-20 13:30:16,990 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2019-09-20 13:30:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:16,990 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2019-09-20 13:30:16,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2019-09-20 13:30:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:16,994 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:16,995 INFO L407 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] [2019-09-20 13:30:16,995 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:16,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1332267464, now seen corresponding path program 1 times [2019-09-20 13:30:16,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:17,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:17,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,000 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:17,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:17,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:17,189 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:17,189 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:17,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:17,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:17,190 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 7 states. [2019-09-20 13:30:17,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:17,452 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2019-09-20 13:30:17,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:17,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:30:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:17,455 INFO L225 Difference]: With dead ends: 124 [2019-09-20 13:30:17,455 INFO L226 Difference]: Without dead ends: 124 [2019-09-20 13:30:17,456 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-20 13:30:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-20 13:30:17,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-20 13:30:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-09-20 13:30:17,465 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 56 [2019-09-20 13:30:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:17,466 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-09-20 13:30:17,466 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-09-20 13:30:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:30:17,468 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:17,468 INFO L407 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] [2019-09-20 13:30:17,468 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:17,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:17,469 INFO L82 PathProgramCache]: Analyzing trace with hash -877153324, now seen corresponding path program 1 times [2019-09-20 13:30:17,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:17,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:17,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,472 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:17,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:17,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:17,651 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:17,651 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:17,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:17,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:17,652 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 5 states. [2019-09-20 13:30:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:18,089 INFO L93 Difference]: Finished difference Result 220 states and 256 transitions. [2019-09-20 13:30:18,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:18,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-20 13:30:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:18,092 INFO L225 Difference]: With dead ends: 220 [2019-09-20 13:30:18,092 INFO L226 Difference]: Without dead ends: 220 [2019-09-20 13:30:18,093 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-09-20 13:30:18,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 202. [2019-09-20 13:30:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-09-20 13:30:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 232 transitions. [2019-09-20 13:30:18,109 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 232 transitions. Word has length 69 [2019-09-20 13:30:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:18,109 INFO L475 AbstractCegarLoop]: Abstraction has 202 states and 232 transitions. [2019-09-20 13:30:18,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 232 transitions. [2019-09-20 13:30:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:30:18,111 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:18,111 INFO L407 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] [2019-09-20 13:30:18,112 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:18,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:18,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1061705923, now seen corresponding path program 1 times [2019-09-20 13:30:18,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:18,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:18,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:18,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:18,116 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:18,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:18,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:18,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:18,253 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:18,254 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:18,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:18,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:18,255 INFO L87 Difference]: Start difference. First operand 202 states and 232 transitions. Second operand 6 states. [2019-09-20 13:30:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:18,437 INFO L93 Difference]: Finished difference Result 358 states and 411 transitions. [2019-09-20 13:30:18,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:18,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-09-20 13:30:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:18,445 INFO L225 Difference]: With dead ends: 358 [2019-09-20 13:30:18,446 INFO L226 Difference]: Without dead ends: 358 [2019-09-20 13:30:18,446 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:18,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-09-20 13:30:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 352. [2019-09-20 13:30:18,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-09-20 13:30:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 404 transitions. [2019-09-20 13:30:18,480 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 404 transitions. Word has length 83 [2019-09-20 13:30:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:18,481 INFO L475 AbstractCegarLoop]: Abstraction has 352 states and 404 transitions. [2019-09-20 13:30:18,481 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 404 transitions. [2019-09-20 13:30:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:30:18,490 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:18,490 INFO L407 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] [2019-09-20 13:30:18,490 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:18,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1506381919, now seen corresponding path program 1 times [2019-09-20 13:30:18,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:18,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:18,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:18,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:18,493 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:18,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:18,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:18,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:18,626 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:18,627 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:18,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:18,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:18,628 INFO L87 Difference]: Start difference. First operand 352 states and 404 transitions. Second operand 7 states. [2019-09-20 13:30:19,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:19,182 INFO L93 Difference]: Finished difference Result 381 states and 449 transitions. [2019-09-20 13:30:19,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:19,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-20 13:30:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:19,186 INFO L225 Difference]: With dead ends: 381 [2019-09-20 13:30:19,186 INFO L226 Difference]: Without dead ends: 381 [2019-09-20 13:30:19,187 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-09-20 13:30:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 351. [2019-09-20 13:30:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-09-20 13:30:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2019-09-20 13:30:19,204 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 87 [2019-09-20 13:30:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:19,205 INFO L475 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2019-09-20 13:30:19,205 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2019-09-20 13:30:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:19,208 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:19,209 INFO L407 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] [2019-09-20 13:30:19,209 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:19,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1049604760, now seen corresponding path program 1 times [2019-09-20 13:30:19,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:19,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:19,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,215 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:19,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:19,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:19,294 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:19,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:19,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:19,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:19,296 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2019-09-20 13:30:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:19,324 INFO L93 Difference]: Finished difference Result 361 states and 411 transitions. [2019-09-20 13:30:19,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:19,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-20 13:30:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:19,327 INFO L225 Difference]: With dead ends: 361 [2019-09-20 13:30:19,328 INFO L226 Difference]: Without dead ends: 361 [2019-09-20 13:30:19,328 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-09-20 13:30:19,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-09-20 13:30:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-09-20 13:30:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 411 transitions. [2019-09-20 13:30:19,352 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 411 transitions. Word has length 88 [2019-09-20 13:30:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:19,353 INFO L475 AbstractCegarLoop]: Abstraction has 361 states and 411 transitions. [2019-09-20 13:30:19,353 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 411 transitions. [2019-09-20 13:30:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:19,354 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:19,355 INFO L407 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] [2019-09-20 13:30:19,355 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:19,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1751204634, now seen corresponding path program 1 times [2019-09-20 13:30:19,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:19,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:19,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,358 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:19,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:19,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:19,451 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:19,451 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:19,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:19,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:19,452 INFO L87 Difference]: Start difference. First operand 361 states and 411 transitions. Second operand 8 states. [2019-09-20 13:30:19,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:19,486 INFO L93 Difference]: Finished difference Result 375 states and 425 transitions. [2019-09-20 13:30:19,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:19,486 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-09-20 13:30:19,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:19,491 INFO L225 Difference]: With dead ends: 375 [2019-09-20 13:30:19,491 INFO L226 Difference]: Without dead ends: 375 [2019-09-20 13:30:19,492 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-09-20 13:30:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 369. [2019-09-20 13:30:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-09-20 13:30:19,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 419 transitions. [2019-09-20 13:30:19,508 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 419 transitions. Word has length 88 [2019-09-20 13:30:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:19,509 INFO L475 AbstractCegarLoop]: Abstraction has 369 states and 419 transitions. [2019-09-20 13:30:19,509 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 419 transitions. [2019-09-20 13:30:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:19,514 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:19,514 INFO L407 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] [2019-09-20 13:30:19,514 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:19,515 INFO L82 PathProgramCache]: Analyzing trace with hash -818281765, now seen corresponding path program 1 times [2019-09-20 13:30:19,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:19,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:19,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,519 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:19,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:19,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:19,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:19,612 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:19,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:19,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:19,612 INFO L87 Difference]: Start difference. First operand 369 states and 419 transitions. Second operand 4 states. [2019-09-20 13:30:19,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:19,915 INFO L93 Difference]: Finished difference Result 765 states and 911 transitions. [2019-09-20 13:30:19,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:19,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2019-09-20 13:30:19,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:19,919 INFO L225 Difference]: With dead ends: 765 [2019-09-20 13:30:19,920 INFO L226 Difference]: Without dead ends: 765 [2019-09-20 13:30:19,920 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2019-09-20 13:30:19,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 493. [2019-09-20 13:30:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-09-20 13:30:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 556 transitions. [2019-09-20 13:30:19,942 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 556 transitions. Word has length 88 [2019-09-20 13:30:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:19,943 INFO L475 AbstractCegarLoop]: Abstraction has 493 states and 556 transitions. [2019-09-20 13:30:19,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 556 transitions. [2019-09-20 13:30:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:30:19,945 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:19,945 INFO L407 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] [2019-09-20 13:30:19,945 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:19,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:19,946 INFO L82 PathProgramCache]: Analyzing trace with hash -470187979, now seen corresponding path program 1 times [2019-09-20 13:30:19,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:19,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:19,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,948 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:19,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:19,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:19,997 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:19,997 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:19,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:19,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:19,998 INFO L87 Difference]: Start difference. First operand 493 states and 556 transitions. Second operand 3 states. [2019-09-20 13:30:20,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:20,023 INFO L93 Difference]: Finished difference Result 761 states and 872 transitions. [2019-09-20 13:30:20,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:20,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-09-20 13:30:20,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:20,027 INFO L225 Difference]: With dead ends: 761 [2019-09-20 13:30:20,028 INFO L226 Difference]: Without dead ends: 761 [2019-09-20 13:30:20,028 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-09-20 13:30:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 634. [2019-09-20 13:30:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-09-20 13:30:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 725 transitions. [2019-09-20 13:30:20,047 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 725 transitions. Word has length 92 [2019-09-20 13:30:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:20,048 INFO L475 AbstractCegarLoop]: Abstraction has 634 states and 725 transitions. [2019-09-20 13:30:20,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 725 transitions. [2019-09-20 13:30:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-20 13:30:20,051 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:20,051 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:20,051 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:20,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1507801122, now seen corresponding path program 1 times [2019-09-20 13:30:20,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:20,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:20,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,054 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-20 13:30:20,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:20,136 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:20,137 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2019-09-20 13:30:20,139 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [159], [161], [164], [167], [169], [172], [189], [191], [194], [196], [199], [202], [205], [213], [214], [215], [225], [226], [229], [231], [236], [238], [239], [245], [249], [255], [282], [283], [291], [294], [296], [299], [309], [312], [316], [317], [320], [321], [322], [416], [417], [422], [424], [427], [435], [436], [437], [438], [439], [440], [441], [442], [443], [483], [484], [485], [486], [487], [488], [489], [490], [493], [494], [495], [496], [497], [499], [500], [503], [504], [505], [506], [511], [512], [513], [514], [521], [522], [523], [531], [532], [533] [2019-09-20 13:30:20,176 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:20,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:20,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:20,242 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:30:20,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:20,246 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:20,307 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:20,307 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:20,312 INFO L420 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2019-09-20 13:30:20,312 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:20,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:20,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:30:20,313 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:20,314 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:20,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:20,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:20,314 INFO L87 Difference]: Start difference. First operand 634 states and 725 transitions. Second operand 2 states. [2019-09-20 13:30:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:20,315 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:20,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:20,315 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-09-20 13:30:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:20,315 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:20,315 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:20,316 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:20,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:20,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2019-09-20 13:30:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:20,317 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:20,317 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:20,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:20,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:20 BoogieIcfgContainer [2019-09-20 13:30:20,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:20,325 INFO L168 Benchmark]: Toolchain (without parser) took 6062.72 ms. Allocated memory was 132.6 MB in the beginning and 328.2 MB in the end (delta: 195.6 MB). Free memory was 86.9 MB in the beginning and 143.4 MB in the end (delta: -56.5 MB). Peak memory consumption was 139.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:20,326 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:20,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.32 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 86.7 MB in the beginning and 162.8 MB in the end (delta: -76.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:20,328 INFO L168 Benchmark]: Boogie Preprocessor took 89.12 ms. Allocated memory is still 200.3 MB. Free memory was 162.8 MB in the beginning and 158.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:20,329 INFO L168 Benchmark]: RCFGBuilder took 1088.95 ms. Allocated memory was 200.3 MB in the beginning and 223.9 MB in the end (delta: 23.6 MB). Free memory was 158.4 MB in the beginning and 188.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:20,330 INFO L168 Benchmark]: TraceAbstraction took 4173.72 ms. Allocated memory was 223.9 MB in the beginning and 328.2 MB in the end (delta: 104.3 MB). Free memory was 188.8 MB in the beginning and 143.4 MB in the end (delta: 45.4 MB). Peak memory consumption was 149.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:20,335 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.32 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 86.7 MB in the beginning and 162.8 MB in the end (delta: -76.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.12 ms. Allocated memory is still 200.3 MB. Free memory was 162.8 MB in the beginning and 158.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1088.95 ms. Allocated memory was 200.3 MB in the beginning and 223.9 MB in the end (delta: 23.6 MB). Free memory was 158.4 MB in the beginning and 188.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4173.72 ms. Allocated memory was 223.9 MB in the beginning and 328.2 MB in the end (delta: 104.3 MB). Free memory was 188.8 MB in the beginning and 143.4 MB in the end (delta: 45.4 MB). Peak memory consumption was 149.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 240 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1543 SDtfs, 905 SDslu, 3013 SDs, 0 SdLazy, 996 SolverSat, 226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=634occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.87248322147651 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 459 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 893 ConstructedInterpolants, 0 QuantifiedInterpolants, 127233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 48/54 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...