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_spec4_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:56,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:56,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:56,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:56,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:56,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:56,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:56,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:56,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:56,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:56,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:56,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:56,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:56,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:56,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:56,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:56,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:56,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:56,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:56,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:56,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:56,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:56,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:56,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:56,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:56,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:56,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:56,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:56,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:56,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:56,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:56,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:56,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:56,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:56,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:56,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:56,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:56,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:56,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:56,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:56,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:56,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:08:56,313 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:56,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:56,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:56,314 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:56,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:56,315 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:56,315 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:56,315 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:56,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:56,316 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:56,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:56,319 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:56,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:56,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:56,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:56,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:56,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:56,320 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:56,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:56,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:56,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:56,321 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:56,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:56,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:56,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:56,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:56,322 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:56,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:56,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:56,323 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:56,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:56,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:56,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:56,405 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:56,405 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:56,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product11.cil.c [2019-09-16 17:08:56,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ea623369/c72093e1562643cd8d53fcad14f5c0ef/FLAG29ead5d2b [2019-09-16 17:08:56,983 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:56,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product11.cil.c [2019-09-16 17:08:56,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ea623369/c72093e1562643cd8d53fcad14f5c0ef/FLAG29ead5d2b [2019-09-16 17:08:57,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ea623369/c72093e1562643cd8d53fcad14f5c0ef [2019-09-16 17:08:57,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:57,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:57,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:57,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:57,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:57,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:57,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ec717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57, skipping insertion in model container [2019-09-16 17:08:57,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:57,335 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:57,381 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:57,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:57,823 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:57,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:57,929 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:57,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57 WrapperNode [2019-09-16 17:08:57,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:57,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:57,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:57,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:57,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:57,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:57,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:57,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:58,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:58,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:58,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... [2019-09-16 17:08:58,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:58,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:58,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:58,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:58,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:08:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:08:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-16 17:08:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:59,164 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:59,165 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:59,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:59 BoogieIcfgContainer [2019-09-16 17:08:59,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:59,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:59,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:59,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:59,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:57" (1/3) ... [2019-09-16 17:08:59,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4508a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:59, skipping insertion in model container [2019-09-16 17:08:59,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:57" (2/3) ... [2019-09-16 17:08:59,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4508a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:59, skipping insertion in model container [2019-09-16 17:08:59,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:59" (3/3) ... [2019-09-16 17:08:59,176 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product11.cil.c [2019-09-16 17:08:59,187 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:59,197 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:59,243 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:59,272 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:59,272 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:59,273 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:59,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:59,273 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:59,273 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:59,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:59,274 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2019-09-16 17:08:59,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:08:59,308 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:59,309 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:59,312 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:59,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1153338705, now seen corresponding path program 1 times [2019-09-16 17:08:59,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:59,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:59,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:59,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:59,387 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:59,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:59,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:59,737 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:59,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:59,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:59,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:59,762 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 2 states. [2019-09-16 17:08:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:59,787 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-09-16 17:08:59,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:59,788 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:08:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:59,798 INFO L225 Difference]: With dead ends: 101 [2019-09-16 17:08:59,798 INFO L226 Difference]: Without dead ends: 90 [2019-09-16 17:08:59,800 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:59,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-16 17:08:59,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-09-16 17:08:59,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-09-16 17:08:59,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2019-09-16 17:08:59,872 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 46 [2019-09-16 17:08:59,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:59,872 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2019-09-16 17:08:59,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2019-09-16 17:08:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:08:59,876 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:59,876 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:59,876 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:59,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:59,877 INFO L82 PathProgramCache]: Analyzing trace with hash -976475527, now seen corresponding path program 1 times [2019-09-16 17:08:59,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:59,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:59,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:59,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:59,880 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:00,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:00,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:00,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:00,020 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:00,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:00,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:00,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:00,023 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 3 states. [2019-09-16 17:09:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:00,047 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-09-16 17:09:00,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:00,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:00,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:00,052 INFO L225 Difference]: With dead ends: 81 [2019-09-16 17:09:00,052 INFO L226 Difference]: Without dead ends: 81 [2019-09-16 17:09:00,053 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-09-16 17:09:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-09-16 17:09:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-09-16 17:09:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2019-09-16 17:09:00,074 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 47 [2019-09-16 17:09:00,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:00,077 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2019-09-16 17:09:00,077 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:00,077 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2019-09-16 17:09:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:09:00,079 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:00,080 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] [2019-09-16 17:09:00,080 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:00,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:00,081 INFO L82 PathProgramCache]: Analyzing trace with hash 560294279, now seen corresponding path program 1 times [2019-09-16 17:09:00,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:00,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:00,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:00,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:00,084 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:00,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:00,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:00,292 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:00,293 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:00,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:00,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:00,294 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand 7 states. [2019-09-16 17:09:00,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:00,644 INFO L93 Difference]: Finished difference Result 188 states and 222 transitions. [2019-09-16 17:09:00,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:00,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:09:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:00,651 INFO L225 Difference]: With dead ends: 188 [2019-09-16 17:09:00,651 INFO L226 Difference]: Without dead ends: 188 [2019-09-16 17:09:00,652 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-09-16 17:09:00,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2019-09-16 17:09:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-09-16 17:09:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2019-09-16 17:09:00,676 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 51 [2019-09-16 17:09:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:00,677 INFO L475 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2019-09-16 17:09:00,677 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2019-09-16 17:09:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-16 17:09:00,679 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:00,679 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] [2019-09-16 17:09:00,680 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:00,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:00,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1587380888, now seen corresponding path program 1 times [2019-09-16 17:09:00,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:00,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:00,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:00,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:00,683 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:00,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:00,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:00,872 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:00,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:00,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:00,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:00,873 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand 10 states. [2019-09-16 17:09:01,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:01,406 INFO L93 Difference]: Finished difference Result 408 states and 511 transitions. [2019-09-16 17:09:01,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:01,408 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2019-09-16 17:09:01,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:01,413 INFO L225 Difference]: With dead ends: 408 [2019-09-16 17:09:01,414 INFO L226 Difference]: Without dead ends: 408 [2019-09-16 17:09:01,414 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-09-16 17:09:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 396. [2019-09-16 17:09:01,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-09-16 17:09:01,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 490 transitions. [2019-09-16 17:09:01,483 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 490 transitions. Word has length 54 [2019-09-16 17:09:01,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:01,484 INFO L475 AbstractCegarLoop]: Abstraction has 396 states and 490 transitions. [2019-09-16 17:09:01,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:01,485 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 490 transitions. [2019-09-16 17:09:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-16 17:09:01,491 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:01,492 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] [2019-09-16 17:09:01,492 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:01,498 INFO L82 PathProgramCache]: Analyzing trace with hash -660855694, now seen corresponding path program 1 times [2019-09-16 17:09:01,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:01,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:01,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:01,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:01,502 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:01,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:01,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:01,596 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:01,597 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:01,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:01,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:01,598 INFO L87 Difference]: Start difference. First operand 396 states and 490 transitions. Second operand 3 states. [2019-09-16 17:09:01,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:01,609 INFO L93 Difference]: Finished difference Result 354 states and 416 transitions. [2019-09-16 17:09:01,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:01,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-09-16 17:09:01,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:01,612 INFO L225 Difference]: With dead ends: 354 [2019-09-16 17:09:01,612 INFO L226 Difference]: Without dead ends: 354 [2019-09-16 17:09:01,613 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:01,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-09-16 17:09:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-09-16 17:09:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-09-16 17:09:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 416 transitions. [2019-09-16 17:09:01,629 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 416 transitions. Word has length 58 [2019-09-16 17:09:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:01,629 INFO L475 AbstractCegarLoop]: Abstraction has 354 states and 416 transitions. [2019-09-16 17:09:01,629 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 416 transitions. [2019-09-16 17:09:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:09:01,632 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:01,632 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:01,632 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:01,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:01,633 INFO L82 PathProgramCache]: Analyzing trace with hash 936630038, now seen corresponding path program 1 times [2019-09-16 17:09:01,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:01,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:01,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:01,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:01,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-16 17:09:01,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:01,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:09:01,753 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:01,753 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:09:01,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:09:01,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:09:01,754 INFO L87 Difference]: Start difference. First operand 354 states and 416 transitions. Second operand 6 states. [2019-09-16 17:09:01,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:01,871 INFO L93 Difference]: Finished difference Result 357 states and 417 transitions. [2019-09-16 17:09:01,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:01,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-16 17:09:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:01,873 INFO L225 Difference]: With dead ends: 357 [2019-09-16 17:09:01,873 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:01,873 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:09:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:01,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-09-16 17:09:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:01,875 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:01,875 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:09:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:01,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:01,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:01 BoogieIcfgContainer [2019-09-16 17:09:01,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:01,884 INFO L168 Benchmark]: Toolchain (without parser) took 4564.06 ms. Allocated memory was 133.2 MB in the beginning and 262.1 MB in the end (delta: 129.0 MB). Free memory was 88.1 MB in the beginning and 116.3 MB in the end (delta: -28.3 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:01,885 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:01,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.47 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.9 MB in the beginning and 166.1 MB in the end (delta: -78.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:01,887 INFO L168 Benchmark]: Boogie Preprocessor took 108.22 ms. Allocated memory is still 199.8 MB. Free memory was 166.1 MB in the beginning and 161.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:01,888 INFO L168 Benchmark]: RCFGBuilder took 1128.12 ms. Allocated memory is still 199.8 MB. Free memory was 161.5 MB in the beginning and 81.4 MB in the end (delta: 80.1 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:01,889 INFO L168 Benchmark]: TraceAbstraction took 2712.73 ms. Allocated memory was 199.8 MB in the beginning and 262.1 MB in the end (delta: 62.4 MB). Free memory was 80.8 MB in the beginning and 116.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:01,893 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 610.47 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.9 MB in the beginning and 166.1 MB in the end (delta: -78.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.22 ms. Allocated memory is still 199.8 MB. Free memory was 166.1 MB in the beginning and 161.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1128.12 ms. Allocated memory is still 199.8 MB. Free memory was 161.5 MB in the beginning and 81.4 MB in the end (delta: 80.1 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2712.73 ms. Allocated memory was 199.8 MB in the beginning and 262.1 MB in the end (delta: 62.4 MB). Free memory was 80.8 MB in the beginning and 116.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 207 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 571 SDtfs, 354 SDslu, 1286 SDs, 0 SdLazy, 401 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred 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, 6 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 39145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 26/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...