java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:59,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:59,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:59,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:59,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:59,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:59,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:59,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:59,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:59,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:59,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:59,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:59,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:59,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:59,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:59,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:59,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:59,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:59,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:59,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:59,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:59,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:59,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:59,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:59,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:59,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:59,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:59,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:59,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:59,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:59,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:59,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:59,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:59,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:59,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:59,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:59,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:59,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:59,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:59,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:59,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:59,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:59,236 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:59,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:59,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:59,237 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:59,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:59,238 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:59,238 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:59,238 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:59,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:59,238 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:59,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:59,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:59,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:59,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:59,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:59,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:59,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:59,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:59,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:59,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:59,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:59,243 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:59,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:59,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:59,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:59,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:59,244 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:59,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:59,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:59,245 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:59,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:59,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:59,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:59,314 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:59,315 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:59,315 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c [2019-09-20 13:29:59,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e861355a/52ab3b68d72b44b3946bf06bc07b66aa/FLAG58c728e25 [2019-09-20 13:29:59,872 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:59,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c [2019-09-20 13:29:59,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e861355a/52ab3b68d72b44b3946bf06bc07b66aa/FLAG58c728e25 [2019-09-20 13:30:00,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e861355a/52ab3b68d72b44b3946bf06bc07b66aa [2019-09-20 13:30:00,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:00,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:00,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:00,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:00,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:00,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6da0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:00,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,223 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:00,285 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:00,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:00,723 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:00,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:00,875 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:00,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00 WrapperNode [2019-09-20 13:30:00,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:00,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:00,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:00,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:00,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... [2019-09-20 13:30:00,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:00,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:00,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:00,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:00,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:02,194 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:02,195 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:02,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:02 BoogieIcfgContainer [2019-09-20 13:30:02,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:02,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:02,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:02,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:02,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:00" (1/3) ... [2019-09-20 13:30:02,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d5dec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:02, skipping insertion in model container [2019-09-20 13:30:02,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:00" (2/3) ... [2019-09-20 13:30:02,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d5dec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:02, skipping insertion in model container [2019-09-20 13:30:02,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:02" (3/3) ... [2019-09-20 13:30:02,204 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2019-09-20 13:30:02,213 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:02,220 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:02,236 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:02,262 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:02,262 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:02,263 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:02,263 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:02,263 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:02,263 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:02,263 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:02,264 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2019-09-20 13:30:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:02,295 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,296 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:02,298 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1030614044, now seen corresponding path program 1 times [2019-09-20 13:30:02,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,353 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:02,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:02,651 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:02,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:02,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:02,674 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 2 states. [2019-09-20 13:30:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,700 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2019-09-20 13:30:02,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:02,702 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:02,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,715 INFO L225 Difference]: With dead ends: 124 [2019-09-20 13:30:02,716 INFO L226 Difference]: Without dead ends: 113 [2019-09-20 13:30:02,717 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-09-20 13:30:02,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-09-20 13:30:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-09-20 13:30:02,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2019-09-20 13:30:02,760 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 51 [2019-09-20 13:30:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,761 INFO L475 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2019-09-20 13:30:02,761 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2019-09-20 13:30:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:02,765 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,765 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:02,765 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1356114072, now seen corresponding path program 1 times [2019-09-20 13:30:02,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,769 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:02,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:02,925 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,926 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:02,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:02,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:02,927 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 3 states. [2019-09-20 13:30:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,941 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2019-09-20 13:30:02,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:02,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,944 INFO L225 Difference]: With dead ends: 104 [2019-09-20 13:30:02,944 INFO L226 Difference]: Without dead ends: 104 [2019-09-20 13:30:02,945 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:02,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-20 13:30:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-20 13:30:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-20 13:30:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2019-09-20 13:30:02,956 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 52 [2019-09-20 13:30:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,956 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2019-09-20 13:30:02,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2019-09-20 13:30:02,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:02,959 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,959 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:02,959 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1966114986, now seen corresponding path program 1 times [2019-09-20 13:30:02,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:03,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:03,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:03,144 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:03,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:03,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:03,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:03,145 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 7 states. [2019-09-20 13:30:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:03,428 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2019-09-20 13:30:03,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:03,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:03,430 INFO L225 Difference]: With dead ends: 104 [2019-09-20 13:30:03,431 INFO L226 Difference]: Without dead ends: 104 [2019-09-20 13:30:03,431 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:03,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-20 13:30:03,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-20 13:30:03,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-20 13:30:03,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2019-09-20 13:30:03,440 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 57 [2019-09-20 13:30:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:03,441 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2019-09-20 13:30:03,441 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2019-09-20 13:30:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:30:03,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:03,444 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:03,444 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:03,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1641395945, now seen corresponding path program 1 times [2019-09-20 13:30:03,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:03,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:03,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,447 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:03,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:03,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:03,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:03,582 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:03,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:03,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:03,583 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2019-09-20 13:30:03,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:03,784 INFO L93 Difference]: Finished difference Result 172 states and 198 transitions. [2019-09-20 13:30:03,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:03,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-20 13:30:03,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:03,788 INFO L225 Difference]: With dead ends: 172 [2019-09-20 13:30:03,788 INFO L226 Difference]: Without dead ends: 172 [2019-09-20 13:30:03,792 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:03,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-09-20 13:30:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2019-09-20 13:30:03,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-09-20 13:30:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 196 transitions. [2019-09-20 13:30:03,822 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 196 transitions. Word has length 65 [2019-09-20 13:30:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:03,823 INFO L475 AbstractCegarLoop]: Abstraction has 170 states and 196 transitions. [2019-09-20 13:30:03,823 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 196 transitions. [2019-09-20 13:30:03,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:30:03,826 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:03,827 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:03,827 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:03,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:03,827 INFO L82 PathProgramCache]: Analyzing trace with hash 781494331, now seen corresponding path program 1 times [2019-09-20 13:30:03,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:03,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:03,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,830 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:03,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:03,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:03,955 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:03,955 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:03,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:03,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:03,956 INFO L87 Difference]: Start difference. First operand 170 states and 196 transitions. Second operand 7 states. [2019-09-20 13:30:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:04,326 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2019-09-20 13:30:04,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:04,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-20 13:30:04,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:04,328 INFO L225 Difference]: With dead ends: 124 [2019-09-20 13:30:04,329 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:04,329 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:30:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:04,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-20 13:30:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:04,330 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:04,330 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:04,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:04,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:04 BoogieIcfgContainer [2019-09-20 13:30:04,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:04,338 INFO L168 Benchmark]: Toolchain (without parser) took 4129.50 ms. Allocated memory was 132.1 MB in the beginning and 264.8 MB in the end (delta: 132.6 MB). Free memory was 86.5 MB in the beginning and 152.1 MB in the end (delta: -65.7 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:04,339 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:04,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.20 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 86.3 MB in the beginning and 162.7 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:04,341 INFO L168 Benchmark]: Boogie Preprocessor took 98.18 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 158.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:04,342 INFO L168 Benchmark]: RCFGBuilder took 1221.54 ms. Allocated memory was 198.2 MB in the beginning and 221.2 MB in the end (delta: 23.1 MB). Free memory was 158.2 MB in the beginning and 192.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:04,343 INFO L168 Benchmark]: TraceAbstraction took 2138.17 ms. Allocated memory was 221.2 MB in the beginning and 264.8 MB in the end (delta: 43.5 MB). Free memory was 192.1 MB in the beginning and 152.1 MB in the end (delta: 40.0 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:04,347 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 667.20 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 86.3 MB in the beginning and 162.7 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.18 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 158.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.54 ms. Allocated memory was 198.2 MB in the beginning and 221.2 MB in the end (delta: 23.1 MB). Free memory was 158.2 MB in the beginning and 192.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2138.17 ms. Allocated memory was 221.2 MB in the beginning and 264.8 MB in the end (delta: 43.5 MB). Free memory was 192.1 MB in the beginning and 152.1 MB in the end (delta: 40.0 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 917]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 223 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 570 SDtfs, 272 SDslu, 887 SDs, 0 SdLazy, 335 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 31449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...