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_spec1_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:55,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:55,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:56,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:56,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:56,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:56,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:56,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:56,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:56,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:56,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:56,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:56,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:56,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:56,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:56,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:56,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:56,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:56,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:56,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:56,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:56,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:56,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:56,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:56,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:56,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:56,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:56,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:56,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:56,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:56,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:56,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:56,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:56,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:56,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:56,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:56,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:56,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:56,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:56,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:56,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:56,065 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 [2019-09-16 17:07:56,102 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:56,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:56,103 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:56,103 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:56,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:56,104 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:56,104 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:56,105 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:56,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:56,105 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:56,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:56,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:56,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:56,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:56,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:56,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:56,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:56,107 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:56,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:56,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:56,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:56,108 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:56,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:56,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:56,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:56,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:56,109 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:56,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:56,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:56,110 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:56,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:56,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:56,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:56,158 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:56,158 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:56,159 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product48.cil.c [2019-09-16 17:07:56,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/542288fa6/bf15dd3bee6b4f849172f08b48d2e60b/FLAG23aea7227 [2019-09-16 17:07:56,745 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:56,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product48.cil.c [2019-09-16 17:07:56,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/542288fa6/bf15dd3bee6b4f849172f08b48d2e60b/FLAG23aea7227 [2019-09-16 17:07:57,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/542288fa6/bf15dd3bee6b4f849172f08b48d2e60b [2019-09-16 17:07:57,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:57,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:57,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:57,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:57,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:57,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344f0ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57, skipping insertion in model container [2019-09-16 17:07:57,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,076 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:57,128 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:57,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:57,626 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:57,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:57,777 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:57,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57 WrapperNode [2019-09-16 17:07:57,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:57,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:57,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:57,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:57,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:57,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:57,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:57,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:57,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (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 [2019-09-16 17:07:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:07:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-16 17:07:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:07:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:07:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:07:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:07:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:07:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:07:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:07:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-16 17:07:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:59,137 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:59,137 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:59,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:59 BoogieIcfgContainer [2019-09-16 17:07:59,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:59,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:59,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:59,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:59,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:57" (1/3) ... [2019-09-16 17:07:59,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605dceb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:59, skipping insertion in model container [2019-09-16 17:07:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (2/3) ... [2019-09-16 17:07:59,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605dceb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:59, skipping insertion in model container [2019-09-16 17:07:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:59" (3/3) ... [2019-09-16 17:07:59,147 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product48.cil.c [2019-09-16 17:07:59,157 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:59,166 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:59,184 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:59,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:59,215 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:59,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:59,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:59,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:59,216 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:59,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:59,216 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-16 17:07:59,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:59,250 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,251 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] [2019-09-16 17:07:59,254 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,259 INFO L82 PathProgramCache]: Analyzing trace with hash -952681071, now seen corresponding path program 1 times [2019-09-16 17:07:59,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,306 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:59,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:59,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:59,627 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:59,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:59,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:59,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:59,656 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-16 17:07:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,689 INFO L93 Difference]: Finished difference Result 151 states and 178 transitions. [2019-09-16 17:07:59,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:59,697 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,713 INFO L225 Difference]: With dead ends: 151 [2019-09-16 17:07:59,713 INFO L226 Difference]: Without dead ends: 140 [2019-09-16 17:07:59,715 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 [2019-09-16 17:07:59,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-16 17:07:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-16 17:07:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-16 17:07:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2019-09-16 17:07:59,773 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 46 [2019-09-16 17:07:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,774 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2019-09-16 17:07:59,774 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2019-09-16 17:07:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:59,778 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,778 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] [2019-09-16 17:07:59,781 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,781 INFO L82 PathProgramCache]: Analyzing trace with hash -448216280, now seen corresponding path program 1 times [2019-09-16 17:07:59,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,784 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:59,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:59,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:59,948 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:59,949 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:59,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:59,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:59,951 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 3 states. [2019-09-16 17:07:59,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,988 INFO L93 Difference]: Finished difference Result 131 states and 154 transitions. [2019-09-16 17:07:59,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:59,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,996 INFO L225 Difference]: With dead ends: 131 [2019-09-16 17:07:59,996 INFO L226 Difference]: Without dead ends: 131 [2019-09-16 17:07:59,997 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 [2019-09-16 17:07:59,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-16 17:08:00,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-16 17:08:00,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-16 17:08:00,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2019-09-16 17:08:00,013 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 47 [2019-09-16 17:08:00,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,013 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2019-09-16 17:08:00,015 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2019-09-16 17:08:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:00,018 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,020 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] [2019-09-16 17:08:00,020 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,021 INFO L82 PathProgramCache]: Analyzing trace with hash -673738792, now seen corresponding path program 1 times [2019-09-16 17:08:00,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:00,201 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,202 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:00,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:00,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:00,202 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand 7 states. [2019-09-16 17:08:00,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,735 INFO L93 Difference]: Finished difference Result 288 states and 348 transitions. [2019-09-16 17:08:00,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:00,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:08:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,746 INFO L225 Difference]: With dead ends: 288 [2019-09-16 17:08:00,747 INFO L226 Difference]: Without dead ends: 288 [2019-09-16 17:08:00,747 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2019-09-16 17:08:00,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 276. [2019-09-16 17:08:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-09-16 17:08:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 336 transitions. [2019-09-16 17:08:00,800 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 336 transitions. Word has length 52 [2019-09-16 17:08:00,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,800 INFO L475 AbstractCegarLoop]: Abstraction has 276 states and 336 transitions. [2019-09-16 17:08:00,801 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 336 transitions. [2019-09-16 17:08:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:08:00,825 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,825 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] [2019-09-16 17:08:00,825 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1909301517, now seen corresponding path program 1 times [2019-09-16 17:08:00,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,829 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:00,996 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:00,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:00,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:00,997 INFO L87 Difference]: Start difference. First operand 276 states and 336 transitions. Second operand 6 states. [2019-09-16 17:08:01,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:01,227 INFO L93 Difference]: Finished difference Result 513 states and 628 transitions. [2019-09-16 17:08:01,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:01,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-16 17:08:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:01,233 INFO L225 Difference]: With dead ends: 513 [2019-09-16 17:08:01,233 INFO L226 Difference]: Without dead ends: 513 [2019-09-16 17:08:01,233 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 [2019-09-16 17:08:01,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-09-16 17:08:01,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 507. [2019-09-16 17:08:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2019-09-16 17:08:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 622 transitions. [2019-09-16 17:08:01,308 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 622 transitions. Word has length 57 [2019-09-16 17:08:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:01,312 INFO L475 AbstractCegarLoop]: Abstraction has 507 states and 622 transitions. [2019-09-16 17:08:01,312 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:01,312 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 622 transitions. [2019-09-16 17:08:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:08:01,324 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:01,324 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] [2019-09-16 17:08:01,325 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:01,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:01,329 INFO L82 PathProgramCache]: Analyzing trace with hash 431982967, now seen corresponding path program 1 times [2019-09-16 17:08:01,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:01,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:01,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,333 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:01,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:01,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:01,462 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:01,462 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:01,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:01,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:01,463 INFO L87 Difference]: Start difference. First operand 507 states and 622 transitions. Second operand 7 states. [2019-09-16 17:08:02,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,205 INFO L93 Difference]: Finished difference Result 863 states and 1094 transitions. [2019-09-16 17:08:02,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:02,205 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-16 17:08:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,211 INFO L225 Difference]: With dead ends: 863 [2019-09-16 17:08:02,211 INFO L226 Difference]: Without dead ends: 863 [2019-09-16 17:08:02,212 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:08:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2019-09-16 17:08:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 765. [2019-09-16 17:08:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2019-09-16 17:08:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 927 transitions. [2019-09-16 17:08:02,258 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 927 transitions. Word has length 61 [2019-09-16 17:08:02,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:02,258 INFO L475 AbstractCegarLoop]: Abstraction has 765 states and 927 transitions. [2019-09-16 17:08:02,259 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:02,259 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 927 transitions. [2019-09-16 17:08:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-16 17:08:02,261 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:02,262 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:02,262 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash -597595789, now seen corresponding path program 1 times [2019-09-16 17:08:02,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:02,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:02,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:02,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:02,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:02,367 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:02,367 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:02,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:02,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:02,368 INFO L87 Difference]: Start difference. First operand 765 states and 927 transitions. Second operand 4 states. [2019-09-16 17:08:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,631 INFO L93 Difference]: Finished difference Result 2095 states and 2661 transitions. [2019-09-16 17:08:02,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:02,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-09-16 17:08:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,646 INFO L225 Difference]: With dead ends: 2095 [2019-09-16 17:08:02,647 INFO L226 Difference]: Without dead ends: 2095 [2019-09-16 17:08:02,647 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 [2019-09-16 17:08:02,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2019-09-16 17:08:02,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2049. [2019-09-16 17:08:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2049 states. [2019-09-16 17:08:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2569 transitions. [2019-09-16 17:08:02,742 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2569 transitions. Word has length 99 [2019-09-16 17:08:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:02,742 INFO L475 AbstractCegarLoop]: Abstraction has 2049 states and 2569 transitions. [2019-09-16 17:08:02,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2569 transitions. [2019-09-16 17:08:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-16 17:08:02,752 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:02,753 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:02,753 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:02,754 INFO L82 PathProgramCache]: Analyzing trace with hash -589836430, now seen corresponding path program 1 times [2019-09-16 17:08:02,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:02,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:02,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:02,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:02,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:02,857 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:02,857 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:02,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:02,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:02,858 INFO L87 Difference]: Start difference. First operand 2049 states and 2569 transitions. Second operand 6 states. [2019-09-16 17:08:02,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,954 INFO L93 Difference]: Finished difference Result 2133 states and 2673 transitions. [2019-09-16 17:08:02,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:02,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2019-09-16 17:08:02,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,966 INFO L225 Difference]: With dead ends: 2133 [2019-09-16 17:08:02,966 INFO L226 Difference]: Without dead ends: 2133 [2019-09-16 17:08:02,967 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 [2019-09-16 17:08:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2019-09-16 17:08:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2109. [2019-09-16 17:08:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2019-09-16 17:08:03,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2633 transitions. [2019-09-16 17:08:03,044 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2633 transitions. Word has length 99 [2019-09-16 17:08:03,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,044 INFO L475 AbstractCegarLoop]: Abstraction has 2109 states and 2633 transitions. [2019-09-16 17:08:03,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2633 transitions. [2019-09-16 17:08:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-16 17:08:03,049 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:03,049 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:03,050 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:03,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,050 INFO L82 PathProgramCache]: Analyzing trace with hash 303649908, now seen corresponding path program 1 times [2019-09-16 17:08:03,050 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:03,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:03,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,053 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:03,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:03,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:03,154 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:03,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:03,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:03,155 INFO L87 Difference]: Start difference. First operand 2109 states and 2633 transitions. Second operand 8 states. [2019-09-16 17:08:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,211 INFO L93 Difference]: Finished difference Result 1747 states and 2151 transitions. [2019-09-16 17:08:03,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:03,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2019-09-16 17:08:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,225 INFO L225 Difference]: With dead ends: 1747 [2019-09-16 17:08:03,226 INFO L226 Difference]: Without dead ends: 1747 [2019-09-16 17:08:03,226 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 [2019-09-16 17:08:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2019-09-16 17:08:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1747. [2019-09-16 17:08:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1747 states. [2019-09-16 17:08:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2151 transitions. [2019-09-16 17:08:03,319 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2151 transitions. Word has length 99 [2019-09-16 17:08:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,320 INFO L475 AbstractCegarLoop]: Abstraction has 1747 states and 2151 transitions. [2019-09-16 17:08:03,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2151 transitions. [2019-09-16 17:08:03,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-16 17:08:03,326 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:03,327 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:03,327 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1696809349, now seen corresponding path program 1 times [2019-09-16 17:08:03,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:03,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:03,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,332 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:08:03,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:03,680 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:03,681 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2019-09-16 17:08:03,683 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [129], [132], [134], [143], [147], [151], [154], [159], [162], [167], [173], [179], [196], [198], [203], [206], [209], [211], [216], [218], [219], [220], [221], [227], [231], [275], [279], [280], [283], [284], [287], [289], [292], [302], [303], [304], [327], [329], [330], [348], [349], [399], [400], [405], [407], [410], [414], [416], [419], [421], [424], [437], [438], [439], [440], [441], [442], [443], [444], [445], [485], [486], [487], [488], [489], [490], [495], [499], [500], [501], [502], [503], [504], [507], [508], [509], [515], [516], [517], [518], [525], [527], [528], [533], [534], [535], [537], [538], [539], [540], [541] [2019-09-16 17:08:03,738 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:03,739 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:03,862 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:03,864 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:08:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,870 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:03,959 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:03,959 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:03,964 INFO L420 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2019-09-16 17:08:03,965 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:03,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:03,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-16 17:08:03,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,967 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:03,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:03,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:03,968 INFO L87 Difference]: Start difference. First operand 1747 states and 2151 transitions. Second operand 2 states. [2019-09-16 17:08:03,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,969 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:03,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:03,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 103 [2019-09-16 17:08:03,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,970 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:03,970 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:03,971 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:03,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:03,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2019-09-16 17:08:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,972 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:03,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:03,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:03,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:03 BoogieIcfgContainer [2019-09-16 17:08:03,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:03,982 INFO L168 Benchmark]: Toolchain (without parser) took 6919.56 ms. Allocated memory was 140.5 MB in the beginning and 318.8 MB in the end (delta: 178.3 MB). Free memory was 86.2 MB in the beginning and 139.4 MB in the end (delta: -53.2 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,984 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.62 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 86.0 MB in the beginning and 164.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,987 INFO L168 Benchmark]: Boogie Preprocessor took 103.08 ms. Allocated memory is still 200.3 MB. Free memory was 164.8 MB in the beginning and 160.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,990 INFO L168 Benchmark]: RCFGBuilder took 1257.20 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 160.6 MB in the beginning and 191.0 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,995 INFO L168 Benchmark]: TraceAbstraction took 4838.58 ms. Allocated memory was 226.0 MB in the beginning and 318.8 MB in the end (delta: 92.8 MB). Free memory was 191.0 MB in the beginning and 139.4 MB in the end (delta: 51.6 MB). Peak memory consumption was 144.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:04,006 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.62 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 86.0 MB in the beginning and 164.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.08 ms. Allocated memory is still 200.3 MB. Free memory was 164.8 MB in the beginning and 160.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.20 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 160.6 MB in the beginning and 191.0 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4838.58 ms. Allocated memory was 226.0 MB in the beginning and 318.8 MB in the end (delta: 92.8 MB). Free memory was 191.0 MB in the beginning and 139.4 MB in the end (delta: 51.6 MB). Peak memory consumption was 144.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 863]: 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, 242 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1432 SDtfs, 805 SDslu, 3367 SDs, 0 SdLazy, 947 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2109occurred in iteration=7, 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, 1.0686274509803921 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 186 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 654 ConstructedInterpolants, 0 QuantifiedInterpolants, 83242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...