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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:57,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:57,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:57,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:57,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:57,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:57,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:57,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:57,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:57,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:57,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:57,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:57,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:57,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:57,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:57,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:57,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:57,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:57,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:57,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:57,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:57,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:57,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:57,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:57,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:57,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:57,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:57,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:57,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:57,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:57,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:57,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:57,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:57,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:57,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:57,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:57,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:57,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:57,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:57,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:57,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:57,218 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 13:29:57,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:57,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:57,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:57,235 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:57,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:57,236 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:57,236 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:57,236 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:57,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:57,236 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:57,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:57,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:57,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:57,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:57,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:57,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:57,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:57,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:57,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:57,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:57,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:57,239 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:57,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:57,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:57,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:57,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:57,240 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:57,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:57,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:57,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:57,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:57,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:57,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:57,302 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:57,302 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:57,303 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2019-09-20 13:29:57,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17b494e12/b41473312ee142c29fedeee9a2d20f8d/FLAG4ecad644f [2019-09-20 13:29:57,962 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:57,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2019-09-20 13:29:57,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17b494e12/b41473312ee142c29fedeee9a2d20f8d/FLAG4ecad644f [2019-09-20 13:29:58,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17b494e12/b41473312ee142c29fedeee9a2d20f8d [2019-09-20 13:29:58,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:58,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:58,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:58,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:58,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:58,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31818fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58, skipping insertion in model container [2019-09-20 13:29:58,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,213 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:58,281 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:58,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:58,751 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:58,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:58,885 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:58,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58 WrapperNode [2019-09-20 13:29:58,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:58,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:58,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:58,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:58,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:58,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:58,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:58,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:58,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (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 13:29:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:00,122 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:00,123 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:00,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:00 BoogieIcfgContainer [2019-09-20 13:30:00,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:00,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:00,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:00,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:00,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:58" (1/3) ... [2019-09-20 13:30:00,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757dd329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:00,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (2/3) ... [2019-09-20 13:30:00,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757dd329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:00,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:00" (3/3) ... [2019-09-20 13:30:00,134 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product12.cil.c [2019-09-20 13:30:00,144 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:00,153 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:00,189 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:00,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:00,220 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:00,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:00,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:00,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:00,221 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:00,221 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:00,221 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-09-20 13:30:00,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:00,260 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:00,261 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 13:30:00,264 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:00,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:00,269 INFO L82 PathProgramCache]: Analyzing trace with hash 695039274, now seen corresponding path program 1 times [2019-09-20 13:30:00,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:00,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:00,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,329 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:00,668 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 13:30:00,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:00,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:00,671 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:00,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:00,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:00,696 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 2 states. [2019-09-20 13:30:00,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:00,730 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2019-09-20 13:30:00,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:00,732 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:00,759 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:30:00,759 INFO L226 Difference]: Without dead ends: 99 [2019-09-20 13:30:00,763 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 13:30:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-20 13:30:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-20 13:30:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-20 13:30:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2019-09-20 13:30:00,820 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 51 [2019-09-20 13:30:00,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:00,821 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2019-09-20 13:30:00,821 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:00,821 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2019-09-20 13:30:00,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:00,825 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:00,825 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:00,825 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:00,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:00,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1984182024, now seen corresponding path program 1 times [2019-09-20 13:30:00,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:00,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:00,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,829 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:00,990 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 13:30:00,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:00,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:00,990 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:00,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:00,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:00,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:00,994 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand 3 states. [2019-09-20 13:30:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,017 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2019-09-20 13:30:01,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:01,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,022 INFO L225 Difference]: With dead ends: 90 [2019-09-20 13:30:01,022 INFO L226 Difference]: Without dead ends: 90 [2019-09-20 13:30:01,023 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 13:30:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-20 13:30:01,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-09-20 13:30:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-09-20 13:30:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2019-09-20 13:30:01,044 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 52 [2019-09-20 13:30:01,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,046 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2019-09-20 13:30:01,046 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:01,046 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2019-09-20 13:30:01,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:01,050 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,050 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 13:30:01,051 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1900976134, now seen corresponding path program 1 times [2019-09-20 13:30:01,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,055 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,199 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 13:30:01,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:01,200 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,200 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:01,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:01,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:01,202 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 7 states. [2019-09-20 13:30:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,619 INFO L93 Difference]: Finished difference Result 203 states and 242 transitions. [2019-09-20 13:30:01,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:01,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:01,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,625 INFO L225 Difference]: With dead ends: 203 [2019-09-20 13:30:01,627 INFO L226 Difference]: Without dead ends: 203 [2019-09-20 13:30:01,628 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 13:30:01,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-09-20 13:30:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 179. [2019-09-20 13:30:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-09-20 13:30:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 214 transitions. [2019-09-20 13:30:01,674 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 214 transitions. Word has length 57 [2019-09-20 13:30:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,675 INFO L475 AbstractCegarLoop]: Abstraction has 179 states and 214 transitions. [2019-09-20 13:30:01,675 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 214 transitions. [2019-09-20 13:30:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:30:01,684 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,684 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] [2019-09-20 13:30:01,684 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1671708304, now seen corresponding path program 1 times [2019-09-20 13:30:01,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,691 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,869 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 13:30:01,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:01,870 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:01,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:01,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:01,872 INFO L87 Difference]: Start difference. First operand 179 states and 214 transitions. Second operand 6 states. [2019-09-20 13:30:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,075 INFO L93 Difference]: Finished difference Result 312 states and 374 transitions. [2019-09-20 13:30:02,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:02,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-09-20 13:30:02,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,079 INFO L225 Difference]: With dead ends: 312 [2019-09-20 13:30:02,080 INFO L226 Difference]: Without dead ends: 312 [2019-09-20 13:30:02,080 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 13:30:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-09-20 13:30:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2019-09-20 13:30:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-09-20 13:30:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 368 transitions. [2019-09-20 13:30:02,109 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 368 transitions. Word has length 60 [2019-09-20 13:30:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,110 INFO L475 AbstractCegarLoop]: Abstraction has 306 states and 368 transitions. [2019-09-20 13:30:02,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 368 transitions. [2019-09-20 13:30:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:30:02,112 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,112 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] [2019-09-20 13:30:02,113 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,113 INFO L82 PathProgramCache]: Analyzing trace with hash 2018803980, now seen corresponding path program 1 times [2019-09-20 13:30:02,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,116 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,235 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 13:30:02,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:02,235 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,236 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:02,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:02,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:02,238 INFO L87 Difference]: Start difference. First operand 306 states and 368 transitions. Second operand 6 states. [2019-09-20 13:30:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,381 INFO L93 Difference]: Finished difference Result 274 states and 317 transitions. [2019-09-20 13:30:02,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:02,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-20 13:30:02,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,383 INFO L225 Difference]: With dead ends: 274 [2019-09-20 13:30:02,383 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:02,383 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 13:30:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:02,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-09-20 13:30:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,385 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:02,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:02,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:02,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:02 BoogieIcfgContainer [2019-09-20 13:30:02,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:02,393 INFO L168 Benchmark]: Toolchain (without parser) took 4199.82 ms. Allocated memory was 131.6 MB in the beginning and 265.8 MB in the end (delta: 134.2 MB). Free memory was 86.7 MB in the beginning and 170.1 MB in the end (delta: -83.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,394 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.26 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.5 MB in the beginning and 163.8 MB in the end (delta: -77.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,396 INFO L168 Benchmark]: Boogie Preprocessor took 95.12 ms. Allocated memory is still 198.7 MB. Free memory was 163.8 MB in the beginning and 159.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,397 INFO L168 Benchmark]: RCFGBuilder took 1143.17 ms. Allocated memory is still 198.7 MB. Free memory was 159.9 MB in the beginning and 77.0 MB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,398 INFO L168 Benchmark]: TraceAbstraction took 2264.28 ms. Allocated memory was 198.7 MB in the beginning and 265.8 MB in the end (delta: 67.1 MB). Free memory was 77.0 MB in the beginning and 170.1 MB in the end (delta: -93.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:02,404 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.26 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.5 MB in the beginning and 163.8 MB in the end (delta: -77.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.12 ms. Allocated memory is still 198.7 MB. Free memory was 163.8 MB in the beginning and 159.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1143.17 ms. Allocated memory is still 198.7 MB. Free memory was 159.9 MB in the beginning and 77.0 MB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2264.28 ms. Allocated memory was 198.7 MB in the beginning and 265.8 MB in the end (delta: 67.1 MB). Free memory was 77.0 MB in the beginning and 170.1 MB in the end (delta: -93.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 434]: 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 38 procedures, 216 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 539 SDtfs, 266 SDslu, 1088 SDs, 0 SdLazy, 253 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 28779 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...