java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:21:01,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:21:01,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:21:01,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:21:01,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:21:01,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:21:01,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:21:01,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:21:01,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:21:01,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:21:01,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:21:01,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:21:01,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:21:01,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:21:01,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:21:01,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:21:01,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:21:01,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:21:01,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:21:01,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:21:01,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:21:01,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:21:01,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:21:01,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:21:01,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:21:01,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:21:01,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:21:01,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:21:01,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:21:01,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:21:01,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:21:01,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:21:01,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:21:01,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:21:01,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:21:01,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:21:01,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:21:01,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:21:01,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:21:01,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:21:01,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:21:01,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:21:01,896 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:21:01,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:21:01,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:21:01,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:21:01,898 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:21:01,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:21:01,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:21:01,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:21:01,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:21:01,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:21:01,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:21:01,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:21:01,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:21:01,900 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:21:01,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:21:01,900 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:21:01,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:21:01,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:21:01,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:21:01,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:21:01,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:21:01,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:21:01,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:21:01,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:21:01,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:21:01,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:21:01,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:21:01,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:21:01,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:21:02,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:21:02,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:21:02,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:21:02,187 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:21:02,188 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:21:02,188 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2019-10-15 01:21:02,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b7a2c50/1855f1c40be34d149a0d21a1afa9ac72/FLAG0e6ac946c [2019-10-15 01:21:02,789 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:21:02,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2019-10-15 01:21:02,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b7a2c50/1855f1c40be34d149a0d21a1afa9ac72/FLAG0e6ac946c [2019-10-15 01:21:03,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b7a2c50/1855f1c40be34d149a0d21a1afa9ac72 [2019-10-15 01:21:03,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:21:03,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:21:03,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:21:03,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:21:03,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:21:03,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac730e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03, skipping insertion in model container [2019-10-15 01:21:03,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,127 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:21:03,197 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:21:03,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:21:03,682 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:21:03,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:21:03,852 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:21:03,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03 WrapperNode [2019-10-15 01:21:03,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:21:03,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:21:03,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:21:03,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:21:03,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... [2019-10-15 01:21:03,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:21:03,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:21:03,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:21:03,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:21:03,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:21:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:21:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:21:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:21:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:21:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 01:21:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 01:21:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 01:21:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 01:21:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 01:21:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 01:21:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 01:21:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 01:21:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 01:21:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 01:21:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:21:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 01:21:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:21:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 01:21:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 01:21:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:21:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 01:21:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 01:21:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 01:21:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 01:21:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 01:21:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 01:21:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 01:21:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 01:21:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:21:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:21:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:21:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:21:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:21:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 01:21:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:21:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:21:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:21:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:21:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:21:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:21:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:21:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:21:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:21:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:21:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 01:21:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 01:21:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 01:21:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 01:21:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 01:21:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 01:21:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 01:21:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 01:21:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:21:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 01:21:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 01:21:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 01:21:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 01:21:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:21:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:21:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 01:21:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:21:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:21:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:21:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:21:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 01:21:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 01:21:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 01:21:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 01:21:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 01:21:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 01:21:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 01:21:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:21:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 01:21:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 01:21:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:21:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:21:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:21:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:21:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:21:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:21:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:21:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:21:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:21:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:21:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:21:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:21:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:21:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:21:05,238 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:21:05,238 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 01:21:05,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:21:05 BoogieIcfgContainer [2019-10-15 01:21:05,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:21:05,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:21:05,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:21:05,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:21:05,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:21:03" (1/3) ... [2019-10-15 01:21:05,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134a18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:21:05, skipping insertion in model container [2019-10-15 01:21:05,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:03" (2/3) ... [2019-10-15 01:21:05,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134a18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:21:05, skipping insertion in model container [2019-10-15 01:21:05,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:21:05" (3/3) ... [2019-10-15 01:21:05,249 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2019-10-15 01:21:05,259 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:21:05,267 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:21:05,279 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:21:05,307 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:21:05,307 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:21:05,308 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:21:05,308 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:21:05,308 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:21:05,308 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:21:05,308 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:21:05,309 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:21:05,334 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-10-15 01:21:05,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 01:21:05,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:05,345 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:05,347 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:05,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:05,353 INFO L82 PathProgramCache]: Analyzing trace with hash 916136138, now seen corresponding path program 1 times [2019-10-15 01:21:05,363 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:05,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273391870] [2019-10-15 01:21:05,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:05,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:05,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:05,652 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273391870] [2019-10-15 01:21:05,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:05,654 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:21:05,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895812972] [2019-10-15 01:21:05,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:21:05,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:05,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:21:05,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:05,678 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2019-10-15 01:21:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:05,721 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2019-10-15 01:21:05,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:21:05,722 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-15 01:21:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:05,736 INFO L225 Difference]: With dead ends: 256 [2019-10-15 01:21:05,736 INFO L226 Difference]: Without dead ends: 128 [2019-10-15 01:21:05,741 INFO L600 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 [2019-10-15 01:21:05,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-15 01:21:05,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-15 01:21:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-15 01:21:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2019-10-15 01:21:05,798 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2019-10-15 01:21:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:05,799 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2019-10-15 01:21:05,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:21:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2019-10-15 01:21:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 01:21:05,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:05,803 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:05,804 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:05,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:05,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1104947330, now seen corresponding path program 1 times [2019-10-15 01:21:05,805 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:05,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972142468] [2019-10-15 01:21:05,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:05,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:05,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:06,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972142468] [2019-10-15 01:21:06,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:06,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:21:06,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768699248] [2019-10-15 01:21:06,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:21:06,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:06,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:21:06,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:21:06,008 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2019-10-15 01:21:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:06,037 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2019-10-15 01:21:06,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:21:06,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-15 01:21:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:06,040 INFO L225 Difference]: With dead ends: 205 [2019-10-15 01:21:06,040 INFO L226 Difference]: Without dead ends: 119 [2019-10-15 01:21:06,042 INFO L600 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 [2019-10-15 01:21:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-15 01:21:06,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-15 01:21:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-15 01:21:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2019-10-15 01:21:06,059 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2019-10-15 01:21:06,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:06,060 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2019-10-15 01:21:06,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:21:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2019-10-15 01:21:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 01:21:06,062 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:06,063 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:06,063 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:06,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:06,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1852359913, now seen corresponding path program 1 times [2019-10-15 01:21:06,064 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:06,064 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464818966] [2019-10-15 01:21:06,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:06,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:06,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:06,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464818966] [2019-10-15 01:21:06,220 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:06,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:21:06,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137483375] [2019-10-15 01:21:06,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:21:06,223 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:06,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:21:06,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:21:06,223 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2019-10-15 01:21:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:06,560 INFO L93 Difference]: Finished difference Result 214 states and 253 transitions. [2019-10-15 01:21:06,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:06,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-15 01:21:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:06,564 INFO L225 Difference]: With dead ends: 214 [2019-10-15 01:21:06,564 INFO L226 Difference]: Without dead ends: 119 [2019-10-15 01:21:06,565 INFO L600 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 [2019-10-15 01:21:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-15 01:21:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-15 01:21:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-15 01:21:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2019-10-15 01:21:06,580 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2019-10-15 01:21:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:06,581 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2019-10-15 01:21:06,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:21:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2019-10-15 01:21:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-15 01:21:06,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:06,585 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:06,585 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:06,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:06,585 INFO L82 PathProgramCache]: Analyzing trace with hash 458129541, now seen corresponding path program 1 times [2019-10-15 01:21:06,586 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:06,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360943577] [2019-10-15 01:21:06,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:06,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:06,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:06,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360943577] [2019-10-15 01:21:06,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:06,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:21:06,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676676155] [2019-10-15 01:21:06,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:21:06,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:06,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:21:06,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:21:06,818 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2019-10-15 01:21:07,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:07,362 INFO L93 Difference]: Finished difference Result 308 states and 371 transitions. [2019-10-15 01:21:07,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:21:07,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-15 01:21:07,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:07,368 INFO L225 Difference]: With dead ends: 308 [2019-10-15 01:21:07,369 INFO L226 Difference]: Without dead ends: 213 [2019-10-15 01:21:07,375 INFO L600 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 [2019-10-15 01:21:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-10-15 01:21:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2019-10-15 01:21:07,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-10-15 01:21:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2019-10-15 01:21:07,416 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2019-10-15 01:21:07,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:07,416 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2019-10-15 01:21:07,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:21:07,416 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2019-10-15 01:21:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 01:21:07,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:07,419 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:07,420 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:07,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:07,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1170867649, now seen corresponding path program 1 times [2019-10-15 01:21:07,420 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:07,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168633930] [2019-10-15 01:21:07,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:07,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:07,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:07,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168633930] [2019-10-15 01:21:07,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:07,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:21:07,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331997382] [2019-10-15 01:21:07,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:21:07,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:07,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:21:07,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:21:07,572 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 10 states. [2019-10-15 01:21:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:08,150 INFO L93 Difference]: Finished difference Result 618 states and 772 transitions. [2019-10-15 01:21:08,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 01:21:08,151 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2019-10-15 01:21:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:08,156 INFO L225 Difference]: With dead ends: 618 [2019-10-15 01:21:08,157 INFO L226 Difference]: Without dead ends: 447 [2019-10-15 01:21:08,158 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:21:08,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-15 01:21:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 437. [2019-10-15 01:21:08,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-15 01:21:08,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 517 transitions. [2019-10-15 01:21:08,230 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 517 transitions. Word has length 78 [2019-10-15 01:21:08,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:08,230 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 517 transitions. [2019-10-15 01:21:08,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:21:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 517 transitions. [2019-10-15 01:21:08,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 01:21:08,242 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:08,242 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:08,243 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:08,243 INFO L82 PathProgramCache]: Analyzing trace with hash 276517880, now seen corresponding path program 1 times [2019-10-15 01:21:08,244 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:08,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160646774] [2019-10-15 01:21:08,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:08,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:08,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:08,419 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 01:21:08,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160646774] [2019-10-15 01:21:08,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029736282] [2019-10-15 01:21:08,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:08,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 01:21:08,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:08,818 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:08,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:21:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:21:09,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:09,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 16 [2019-10-15 01:21:09,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028734561] [2019-10-15 01:21:09,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:21:09,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:09,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:21:09,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:21:09,149 INFO L87 Difference]: Start difference. First operand 437 states and 517 transitions. Second operand 8 states. [2019-10-15 01:21:10,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:10,435 INFO L93 Difference]: Finished difference Result 1141 states and 1496 transitions. [2019-10-15 01:21:10,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:21:10,436 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2019-10-15 01:21:10,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:10,443 INFO L225 Difference]: With dead ends: 1141 [2019-10-15 01:21:10,443 INFO L226 Difference]: Without dead ends: 824 [2019-10-15 01:21:10,445 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:21:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2019-10-15 01:21:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 753. [2019-10-15 01:21:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2019-10-15 01:21:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 930 transitions. [2019-10-15 01:21:10,534 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 930 transitions. Word has length 136 [2019-10-15 01:21:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:10,535 INFO L462 AbstractCegarLoop]: Abstraction has 753 states and 930 transitions. [2019-10-15 01:21:10,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:21:10,535 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 930 transitions. [2019-10-15 01:21:10,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 01:21:10,543 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:10,543 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:10,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:10,749 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:10,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:10,750 INFO L82 PathProgramCache]: Analyzing trace with hash -772272072, now seen corresponding path program 1 times [2019-10-15 01:21:10,750 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:10,751 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028020227] [2019-10-15 01:21:10,751 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:10,751 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:10,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:21:10,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028020227] [2019-10-15 01:21:10,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196056617] [2019-10-15 01:21:10,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:11,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:21:11,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:21:11,066 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:21:11,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:11,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-10-15 01:21:11,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256135137] [2019-10-15 01:21:11,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:11,285 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:11,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:11,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:11,286 INFO L87 Difference]: Start difference. First operand 753 states and 930 transitions. Second operand 6 states. [2019-10-15 01:21:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:11,353 INFO L93 Difference]: Finished difference Result 1502 states and 1896 transitions. [2019-10-15 01:21:11,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:11,356 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2019-10-15 01:21:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:11,364 INFO L225 Difference]: With dead ends: 1502 [2019-10-15 01:21:11,365 INFO L226 Difference]: Without dead ends: 773 [2019-10-15 01:21:11,379 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:21:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-10-15 01:21:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2019-10-15 01:21:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2019-10-15 01:21:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 954 transitions. [2019-10-15 01:21:11,472 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 954 transitions. Word has length 128 [2019-10-15 01:21:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:11,472 INFO L462 AbstractCegarLoop]: Abstraction has 773 states and 954 transitions. [2019-10-15 01:21:11,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 954 transitions. [2019-10-15 01:21:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 01:21:11,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:11,477 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:11,683 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:11,684 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:11,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:11,684 INFO L82 PathProgramCache]: Analyzing trace with hash -532032326, now seen corresponding path program 1 times [2019-10-15 01:21:11,684 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:11,685 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476870760] [2019-10-15 01:21:11,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:11,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:11,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:21:11,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476870760] [2019-10-15 01:21:11,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155617733] [2019-10-15 01:21:11,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:11,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:21:11,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:21:12,033 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:21:12,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:12,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-10-15 01:21:12,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665432962] [2019-10-15 01:21:12,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:21:12,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:12,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:21:12,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:21:12,302 INFO L87 Difference]: Start difference. First operand 773 states and 954 transitions. Second operand 5 states. [2019-10-15 01:21:12,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:12,373 INFO L93 Difference]: Finished difference Result 1397 states and 1760 transitions. [2019-10-15 01:21:12,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:21:12,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2019-10-15 01:21:12,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:12,378 INFO L225 Difference]: With dead ends: 1397 [2019-10-15 01:21:12,379 INFO L226 Difference]: Without dead ends: 648 [2019-10-15 01:21:12,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:21:12,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2019-10-15 01:21:12,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2019-10-15 01:21:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2019-10-15 01:21:12,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 786 transitions. [2019-10-15 01:21:12,424 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 786 transitions. Word has length 128 [2019-10-15 01:21:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:12,425 INFO L462 AbstractCegarLoop]: Abstraction has 648 states and 786 transitions. [2019-10-15 01:21:12,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:21:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 786 transitions. [2019-10-15 01:21:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 01:21:12,427 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:12,427 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:12,632 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:12,633 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:12,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:12,633 INFO L82 PathProgramCache]: Analyzing trace with hash 759278389, now seen corresponding path program 1 times [2019-10-15 01:21:12,634 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:12,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692413989] [2019-10-15 01:21:12,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:12,636 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:12,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 01:21:12,749 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692413989] [2019-10-15 01:21:12,749 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:12,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:21:12,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640902418] [2019-10-15 01:21:12,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:12,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:12,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:12,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:12,752 INFO L87 Difference]: Start difference. First operand 648 states and 786 transitions. Second operand 6 states. [2019-10-15 01:21:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:12,807 INFO L93 Difference]: Finished difference Result 1228 states and 1512 transitions. [2019-10-15 01:21:12,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:12,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2019-10-15 01:21:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:12,815 INFO L225 Difference]: With dead ends: 1228 [2019-10-15 01:21:12,815 INFO L226 Difference]: Without dead ends: 663 [2019-10-15 01:21:12,818 INFO L600 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 [2019-10-15 01:21:12,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2019-10-15 01:21:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2019-10-15 01:21:12,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-15 01:21:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 801 transitions. [2019-10-15 01:21:12,876 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 801 transitions. Word has length 132 [2019-10-15 01:21:12,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:12,877 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 801 transitions. [2019-10-15 01:21:12,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 801 transitions. [2019-10-15 01:21:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 01:21:12,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:12,881 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:12,881 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:12,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:12,882 INFO L82 PathProgramCache]: Analyzing trace with hash 249805299, now seen corresponding path program 1 times [2019-10-15 01:21:12,882 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:12,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429620236] [2019-10-15 01:21:12,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:12,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:12,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 01:21:12,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429620236] [2019-10-15 01:21:12,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:12,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:21:12,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833121837] [2019-10-15 01:21:13,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:13,001 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:13,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:13,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:13,002 INFO L87 Difference]: Start difference. First operand 663 states and 801 transitions. Second operand 6 states. [2019-10-15 01:21:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:13,229 INFO L93 Difference]: Finished difference Result 680 states and 820 transitions. [2019-10-15 01:21:13,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:21:13,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2019-10-15 01:21:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:13,237 INFO L225 Difference]: With dead ends: 680 [2019-10-15 01:21:13,237 INFO L226 Difference]: Without dead ends: 677 [2019-10-15 01:21:13,238 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:21:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2019-10-15 01:21:13,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 663. [2019-10-15 01:21:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-15 01:21:13,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 797 transitions. [2019-10-15 01:21:13,298 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 797 transitions. Word has length 132 [2019-10-15 01:21:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:13,299 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 797 transitions. [2019-10-15 01:21:13,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:13,299 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 797 transitions. [2019-10-15 01:21:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 01:21:13,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:13,303 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:13,304 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:13,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1295460868, now seen corresponding path program 1 times [2019-10-15 01:21:13,305 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:13,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523957066] [2019-10-15 01:21:13,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:13,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:13,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:21:13,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523957066] [2019-10-15 01:21:13,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988907436] [2019-10-15 01:21:13,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:13,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:21:13,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:13,860 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:21:14,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1631018863] [2019-10-15 01:21:14,156 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 137 [2019-10-15 01:21:14,216 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:21:14,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:21:14,326 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:21:14,328 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. [2019-10-15 01:21:14,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:14,334 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:21:14,450 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:21:14,451 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:21:14,454 INFO L553 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2019-10-15 01:21:14,455 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:21:14,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:21:14,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9, 9, 9] total 14 [2019-10-15 01:21:14,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960187985] [2019-10-15 01:21:14,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:21:14,462 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:14,463 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:21:14,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:21:14,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:14,463 INFO L87 Difference]: Start difference. First operand 663 states and 797 transitions. Second operand 2 states. [2019-10-15 01:21:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:14,475 INFO L93 Difference]: Finished difference Result 663 states and 797 transitions. [2019-10-15 01:21:14,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:21:14,475 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-15 01:21:14,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:14,476 INFO L225 Difference]: With dead ends: 663 [2019-10-15 01:21:14,476 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:21:14,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:14,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:21:14,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:21:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:21:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:21:14,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2019-10-15 01:21:14,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:14,480 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:21:14,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:21:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:21:14,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:21:14,695 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:14,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:21:15,033 INFO L443 ceAbstractionStarter]: For program point L672(lines 672 676) no Hoare annotation was computed. [2019-10-15 01:21:15,034 INFO L443 ceAbstractionStarter]: For program point L672-1(lines 672 676) no Hoare annotation was computed. [2019-10-15 01:21:15,034 INFO L443 ceAbstractionStarter]: For program point L667(line 667) no Hoare annotation was computed. [2019-10-15 01:21:15,034 INFO L443 ceAbstractionStarter]: For program point L666-2(lines 666 687) no Hoare annotation was computed. [2019-10-15 01:21:15,034 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 641 696) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point L688(lines 665 689) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 641 696) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 641 696) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point L729(lines 729 733) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point L729-1(lines 729 733) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 697 756) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point L724(line 724) no Hoare annotation was computed. [2019-10-15 01:21:15,035 INFO L443 ceAbstractionStarter]: For program point L723-2(lines 723 748) no Hoare annotation was computed. [2019-10-15 01:21:15,036 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 697 756) no Hoare annotation was computed. [2019-10-15 01:21:15,036 INFO L443 ceAbstractionStarter]: For program point L749(lines 722 750) no Hoare annotation was computed. [2019-10-15 01:21:15,036 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 697 756) no Hoare annotation was computed. [2019-10-15 01:21:15,036 INFO L443 ceAbstractionStarter]: For program point L742(line 742) no Hoare annotation was computed. [2019-10-15 01:21:15,036 INFO L443 ceAbstractionStarter]: For program point L742-1(line 742) no Hoare annotation was computed. [2019-10-15 01:21:15,036 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 546 552) the Hoare annotation is: true [2019-10-15 01:21:15,036 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 546 552) no Hoare annotation was computed. [2019-10-15 01:21:15,037 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 553 561) no Hoare annotation was computed. [2019-10-15 01:21:15,037 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 553 561) the Hoare annotation is: true [2019-10-15 01:21:15,037 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 553 561) no Hoare annotation was computed. [2019-10-15 01:21:15,037 INFO L446 ceAbstractionStarter]: At program point L577(line 577) the Hoare annotation is: true [2019-10-15 01:21:15,037 INFO L443 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2019-10-15 01:21:15,037 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 563 587) the Hoare annotation is: true [2019-10-15 01:21:15,037 INFO L446 ceAbstractionStarter]: At program point L573(line 573) the Hoare annotation is: true [2019-10-15 01:21:15,037 INFO L443 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2019-10-15 01:21:15,037 INFO L443 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2019-10-15 01:21:15,040 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 563 587) no Hoare annotation was computed. [2019-10-15 01:21:15,040 INFO L446 ceAbstractionStarter]: At program point L569(line 569) the Hoare annotation is: true [2019-10-15 01:21:15,040 INFO L443 ceAbstractionStarter]: For program point L569-1(line 569) no Hoare annotation was computed. [2019-10-15 01:21:15,040 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 563 587) no Hoare annotation was computed. [2019-10-15 01:21:15,040 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 238 260) the Hoare annotation is: true [2019-10-15 01:21:15,040 INFO L446 ceAbstractionStarter]: At program point L250(line 250) the Hoare annotation is: true [2019-10-15 01:21:15,040 INFO L446 ceAbstractionStarter]: At program point L250-1(line 250) the Hoare annotation is: true [2019-10-15 01:21:15,040 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 238 260) no Hoare annotation was computed. [2019-10-15 01:21:15,041 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 255) no Hoare annotation was computed. [2019-10-15 01:21:15,041 INFO L443 ceAbstractionStarter]: For program point L248-1(lines 248 255) no Hoare annotation was computed. [2019-10-15 01:21:15,041 INFO L443 ceAbstractionStarter]: For program point L246(line 246) no Hoare annotation was computed. [2019-10-15 01:21:15,041 INFO L446 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: true [2019-10-15 01:21:15,041 INFO L446 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: true [2019-10-15 01:21:15,041 INFO L446 ceAbstractionStarter]: At program point L244-1(line 244) the Hoare annotation is: true [2019-10-15 01:21:15,041 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 238 260) no Hoare annotation was computed. [2019-10-15 01:21:15,041 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 193 216) no Hoare annotation was computed. [2019-10-15 01:21:15,042 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 193 216) no Hoare annotation was computed. [2019-10-15 01:21:15,042 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 193 216) no Hoare annotation was computed. [2019-10-15 01:21:15,042 INFO L443 ceAbstractionStarter]: For program point L211(line 211) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L210(line 210) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L209(line 209) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L208(line 208) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L207(line 207) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L206(line 206) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L205(line 205) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L204(line 204) no Hoare annotation was computed. [2019-10-15 01:21:15,043 INFO L443 ceAbstractionStarter]: For program point L203(line 203) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point L201(line 201) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point L198(line 198) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 379 387) no Hoare annotation was computed. [2019-10-15 01:21:15,044 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 379 387) the Hoare annotation is: true [2019-10-15 01:21:15,044 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 379 387) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point L450-1(line 450) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 443 461) the Hoare annotation is: true [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 443 461) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point L452(lines 452 456) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L446 ceAbstractionStarter]: At program point L450(line 450) the Hoare annotation is: true [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 443 461) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point L418-1(line 418) no Hoare annotation was computed. [2019-10-15 01:21:15,045 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 415) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point L407-2(lines 407 415) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 388 423) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point L395(lines 395 403) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point L395-2(lines 395 403) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 388 423) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 388 423) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 539 545) no Hoare annotation was computed. [2019-10-15 01:21:15,046 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 539 545) the Hoare annotation is: true [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 595 640) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 595 640) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 595 640) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point L928(lines 928 935) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point L922(lines 922 942) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 908 953) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point L922-1(lines 922 942) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 908 953) no Hoare annotation was computed. [2019-10-15 01:21:15,047 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 908 953) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 225 234) the Hoare annotation is: true [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 225 234) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 225 234) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmENTRY(lines 368 378) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 368 378) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 368 378) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point L373(line 373) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L443 ceAbstractionStarter]: For program point L373-1(line 373) no Hoare annotation was computed. [2019-10-15 01:21:15,048 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 360 367) the Hoare annotation is: true [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 360 367) no Hoare annotation was computed. [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 360 367) no Hoare annotation was computed. [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 146) no Hoare annotation was computed. [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 136 149) no Hoare annotation was computed. [2019-10-15 01:21:15,049 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 136 149) the Hoare annotation is: true [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 136 149) no Hoare annotation was computed. [2019-10-15 01:21:15,049 INFO L446 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: true [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point L346-1(lines 327 351) no Hoare annotation was computed. [2019-10-15 01:21:15,049 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 327 351) no Hoare annotation was computed. [2019-10-15 01:21:15,050 INFO L446 ceAbstractionStarter]: At program point L341(line 341) the Hoare annotation is: true [2019-10-15 01:21:15,050 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 327 351) the Hoare annotation is: true [2019-10-15 01:21:15,050 INFO L446 ceAbstractionStarter]: At program point L337(line 337) the Hoare annotation is: true [2019-10-15 01:21:15,050 INFO L443 ceAbstractionStarter]: For program point L335(lines 335 343) no Hoare annotation was computed. [2019-10-15 01:21:15,050 INFO L446 ceAbstractionStarter]: At program point L333(line 333) the Hoare annotation is: true [2019-10-15 01:21:15,050 INFO L443 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2019-10-15 01:21:15,050 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 348) no Hoare annotation was computed. [2019-10-15 01:21:15,050 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 293 299) no Hoare annotation was computed. [2019-10-15 01:21:15,051 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 293 299) the Hoare annotation is: true [2019-10-15 01:21:15,051 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 463 526) the Hoare annotation is: true [2019-10-15 01:21:15,051 INFO L443 ceAbstractionStarter]: For program point L475(lines 475 479) no Hoare annotation was computed. [2019-10-15 01:21:15,051 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 463 526) no Hoare annotation was computed. [2019-10-15 01:21:15,051 INFO L446 ceAbstractionStarter]: At program point L519(lines 472 520) the Hoare annotation is: true [2019-10-15 01:21:15,051 INFO L443 ceAbstractionStarter]: For program point L509(lines 509 513) no Hoare annotation was computed. [2019-10-15 01:21:15,051 INFO L446 ceAbstractionStarter]: At program point L509-2(lines 503 514) the Hoare annotation is: true [2019-10-15 01:21:15,051 INFO L443 ceAbstractionStarter]: For program point L474(lines 473 518) no Hoare annotation was computed. [2019-10-15 01:21:15,052 INFO L443 ceAbstractionStarter]: For program point L503(lines 503 514) no Hoare annotation was computed. [2019-10-15 01:21:15,052 INFO L446 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: true [2019-10-15 01:21:15,052 INFO L443 ceAbstractionStarter]: For program point L493(lines 493 499) no Hoare annotation was computed. [2019-10-15 01:21:15,052 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2019-10-15 01:21:15,052 INFO L446 ceAbstractionStarter]: At program point L485(line 485) the Hoare annotation is: true [2019-10-15 01:21:15,052 INFO L446 ceAbstractionStarter]: At program point L516(lines 473 518) the Hoare annotation is: true [2019-10-15 01:21:15,052 INFO L443 ceAbstractionStarter]: For program point L483(lines 483 489) no Hoare annotation was computed. [2019-10-15 01:21:15,052 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 463 526) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 862 907) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 862 907) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point L882(lines 882 889) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 862 907) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point L876(lines 876 896) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point L876-1(lines 876 896) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 150 158) no Hoare annotation was computed. [2019-10-15 01:21:15,053 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 150 158) the Hoare annotation is: true [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 150 158) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point L112(lines 112 120) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point L112-2(lines 112 120) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 104 126) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 104 126) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 104 126) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 529 538) no Hoare annotation was computed. [2019-10-15 01:21:15,054 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 529 538) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 529 538) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 759 861) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point L824(line 824) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point L824-1(line 824) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point L783(lines 783 787) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point L847(lines 847 858) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point L810(lines 810 814) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point L808-2(lines 808 828) no Hoare annotation was computed. [2019-10-15 01:21:15,055 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 759 861) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L829(lines 807 830) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L788(lines 788 804) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 759 861) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L848(lines 848 855) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L809(lines 808 828) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L840(line 840) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L840-1(line 840) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point L805(lines 805 846) no Hoare annotation was computed. [2019-10-15 01:21:15,056 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,057 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-15 01:21:15,057 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,057 INFO L443 ceAbstractionStarter]: For program point activatePumpFINAL(lines 352 359) no Hoare annotation was computed. [2019-10-15 01:21:15,057 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2019-10-15 01:21:15,057 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 352 359) the Hoare annotation is: true [2019-10-15 01:21:15,058 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 127 135) the Hoare annotation is: true [2019-10-15 01:21:15,058 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 127 135) no Hoare annotation was computed. [2019-10-15 01:21:15,058 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 127 135) no Hoare annotation was computed. [2019-10-15 01:21:15,058 INFO L443 ceAbstractionStarter]: For program point L433(lines 433 437) no Hoare annotation was computed. [2019-10-15 01:21:15,058 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 424 442) no Hoare annotation was computed. [2019-10-15 01:21:15,058 INFO L446 ceAbstractionStarter]: At program point L431(line 431) the Hoare annotation is: true [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point L431-1(line 431) no Hoare annotation was computed. [2019-10-15 01:21:15,059 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 424 442) the Hoare annotation is: true [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 424 442) no Hoare annotation was computed. [2019-10-15 01:21:15,059 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,059 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,060 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,060 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalENTRY(lines 95 103) no Hoare annotation was computed. [2019-10-15 01:21:15,060 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2019-10-15 01:21:15,060 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2019-10-15 01:21:15,060 INFO L446 ceAbstractionStarter]: At program point L282(line 282) the Hoare annotation is: true [2019-10-15 01:21:15,060 INFO L446 ceAbstractionStarter]: At program point L280(lines 280 286) the Hoare annotation is: true [2019-10-15 01:21:15,060 INFO L446 ceAbstractionStarter]: At program point L275(line 275) the Hoare annotation is: true [2019-10-15 01:21:15,061 INFO L443 ceAbstractionStarter]: For program point L273(lines 272 291) no Hoare annotation was computed. [2019-10-15 01:21:15,061 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 269 292) the Hoare annotation is: true [2019-10-15 01:21:15,062 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 269 292) no Hoare annotation was computed. [2019-10-15 01:21:15,062 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 269 292) no Hoare annotation was computed. [2019-10-15 01:21:15,062 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2019-10-15 01:21:15,062 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2019-10-15 01:21:15,062 INFO L446 ceAbstractionStarter]: At program point L187(lines 162 191) the Hoare annotation is: true [2019-10-15 01:21:15,062 INFO L443 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2019-10-15 01:21:15,062 INFO L443 ceAbstractionStarter]: For program point L176(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:21:15,062 INFO L446 ceAbstractionStarter]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2019-10-15 01:21:15,063 INFO L443 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2019-10-15 01:21:15,063 INFO L446 ceAbstractionStarter]: At program point L172-2(lines 172 186) the Hoare annotation is: true [2019-10-15 01:21:15,063 INFO L446 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2019-10-15 01:21:15,063 INFO L443 ceAbstractionStarter]: For program point L168-1(line 168) no Hoare annotation was computed. [2019-10-15 01:21:15,063 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 59 70) the Hoare annotation is: true [2019-10-15 01:21:15,064 INFO L443 ceAbstractionStarter]: For program point L63-1(lines 59 70) no Hoare annotation was computed. [2019-10-15 01:21:15,064 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 59 70) no Hoare annotation was computed. [2019-10-15 01:21:15,064 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2019-10-15 01:21:15,064 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2019-10-15 01:21:15,065 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,065 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:21:15,065 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:21:15,065 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:15,065 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 301 325) the Hoare annotation is: true [2019-10-15 01:21:15,065 INFO L446 ceAbstractionStarter]: At program point L320(line 320) the Hoare annotation is: true [2019-10-15 01:21:15,065 INFO L443 ceAbstractionStarter]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2019-10-15 01:21:15,065 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 301 325) no Hoare annotation was computed. [2019-10-15 01:21:15,066 INFO L446 ceAbstractionStarter]: At program point L315(line 315) the Hoare annotation is: true [2019-10-15 01:21:15,066 INFO L446 ceAbstractionStarter]: At program point L311(line 311) the Hoare annotation is: true [2019-10-15 01:21:15,066 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 317) no Hoare annotation was computed. [2019-10-15 01:21:15,066 INFO L446 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: true [2019-10-15 01:21:15,066 INFO L443 ceAbstractionStarter]: For program point L307-1(line 307) no Hoare annotation was computed. [2019-10-15 01:21:15,066 INFO L443 ceAbstractionStarter]: For program point L305(lines 305 322) no Hoare annotation was computed. [2019-10-15 01:21:15,066 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2019-10-15 01:21:15,066 INFO L443 ceAbstractionStarter]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2019-10-15 01:21:15,066 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: true [2019-10-15 01:21:15,067 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2019-10-15 01:21:15,067 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-15 01:21:15,067 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-15 01:21:15,067 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-15 01:21:15,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:21:15 BoogieIcfgContainer [2019-10-15 01:21:15,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:21:15,086 INFO L168 Benchmark]: Toolchain (without parser) took 11976.76 ms. Allocated memory was 138.9 MB in the beginning and 366.0 MB in the end (delta: 227.0 MB). Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 237.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:15,094 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-15 01:21:15,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.78 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 169.8 MB in the end (delta: -67.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:15,097 INFO L168 Benchmark]: Boogie Preprocessor took 113.10 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 165.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:15,098 INFO L168 Benchmark]: RCFGBuilder took 1274.05 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.1 MB in the beginning and 195.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:15,099 INFO L168 Benchmark]: TraceAbstraction took 9840.68 ms. Allocated memory was 235.4 MB in the beginning and 366.0 MB in the end (delta: 130.5 MB). Free memory was 195.4 MB in the beginning and 92.7 MB in the end (delta: 102.7 MB). Peak memory consumption was 233.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:15,111 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.78 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 169.8 MB in the end (delta: -67.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.10 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 165.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.05 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.1 MB in the beginning and 195.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9840.68 ms. Allocated memory was 235.4 MB in the beginning and 366.0 MB in the end (delta: 130.5 MB). Free memory was 195.4 MB in the beginning and 92.7 MB in the end (delta: 102.7 MB). Peak memory consumption was 233.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Result: SAFE, OverallTime: 9.7s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 1518 SDtfs, 1051 SDslu, 3781 SDs, 0 SdLazy, 1793 SolverSat, 401 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1018 GetRequests, 933 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=773occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 113 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 1498 PreInvPairs, 1499 NumberOfFragments, 64 HoareAnnotationTreeSize, 1498 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 58 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1606 NumberOfCodeBlocks, 1606 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2115 ConstructedInterpolants, 0 QuantifiedInterpolants, 369729 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3319 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 323/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 179, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9037037037037037, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...