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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:07,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:07,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:07,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:07,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:07,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:07,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:07,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:07,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:07,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:07,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:07,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:07,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:07,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:07,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:07,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:07,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:07,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:07,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:07,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:07,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:07,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:07,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:07,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:07,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:07,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:07,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:07,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:07,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:07,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:07,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:07,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:07,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:07,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:07,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:07,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:07,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:07,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:07,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:07,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:07,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:07,568 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 [2019-10-03 02:58:07,582 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:07,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:07,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:07,583 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:07,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:07,584 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:07,584 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:07,585 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:07,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:07,585 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:07,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:07,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:07,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:07,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:07,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:07,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:07,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:07,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:07,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:07,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:07,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:07,588 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:07,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:07,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:07,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:07,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:07,589 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:07,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:07,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:07,589 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:07,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:07,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:07,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:07,635 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:07,636 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:07,636 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c [2019-10-03 02:58:07,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71bbe712d/43d6bbc1ace94e2fb36e2c72d8040b85/FLAG978e6f9ed [2019-10-03 02:58:08,301 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:08,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c [2019-10-03 02:58:08,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71bbe712d/43d6bbc1ace94e2fb36e2c72d8040b85/FLAG978e6f9ed [2019-10-03 02:58:08,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71bbe712d/43d6bbc1ace94e2fb36e2c72d8040b85 [2019-10-03 02:58:08,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:08,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:08,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:08,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:08,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:08,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:08" (1/1) ... [2019-10-03 02:58:08,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac258e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:08, skipping insertion in model container [2019-10-03 02:58:08,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:08" (1/1) ... [2019-10-03 02:58:08,569 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:08,619 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:09,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:09,049 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:09,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:09,185 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:09,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09 WrapperNode [2019-10-03 02:58:09,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:09,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:09,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:09,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:09,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:09,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:09,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:09,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:09,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:58:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:09,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:58:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:10,561 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:10,562 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:10,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:10 BoogieIcfgContainer [2019-10-03 02:58:10,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:10,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:10,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:10,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:10,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:08" (1/3) ... [2019-10-03 02:58:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e539ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:10, skipping insertion in model container [2019-10-03 02:58:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (2/3) ... [2019-10-03 02:58:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e539ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:10, skipping insertion in model container [2019-10-03 02:58:10,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:10" (3/3) ... [2019-10-03 02:58:10,573 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product03.cil.c [2019-10-03 02:58:10,583 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:10,593 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:10,611 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:10,637 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:10,637 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:10,637 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:10,637 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:10,638 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:10,638 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:10,638 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:10,638 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:10,659 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2019-10-03 02:58:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:10,672 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:10,673 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:10,676 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:10,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:10,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1645653850, now seen corresponding path program 1 times [2019-10-03 02:58:10,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:10,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:10,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,741 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:11,075 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,081 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:11,101 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 2 states. [2019-10-03 02:58:11,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:11,130 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-10-03 02:58:11,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:11,132 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:11,144 INFO L225 Difference]: With dead ends: 101 [2019-10-03 02:58:11,145 INFO L226 Difference]: Without dead ends: 90 [2019-10-03 02:58:11,147 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:11,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-10-03 02:58:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-10-03 02:58:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-10-03 02:58:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2019-10-03 02:58:11,207 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 46 [2019-10-03 02:58:11,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:11,207 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2019-10-03 02:58:11,208 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2019-10-03 02:58:11,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:11,211 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,212 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:11,212 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1821384666, now seen corresponding path program 1 times [2019-10-03 02:58:11,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,217 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:11,328 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,330 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:11,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:11,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:11,331 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 3 states. [2019-10-03 02:58:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:11,344 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-10-03 02:58:11,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:11,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:11,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:11,347 INFO L225 Difference]: With dead ends: 81 [2019-10-03 02:58:11,347 INFO L226 Difference]: Without dead ends: 81 [2019-10-03 02:58:11,349 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:11,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-03 02:58:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-10-03 02:58:11,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-03 02:58:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2019-10-03 02:58:11,359 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 47 [2019-10-03 02:58:11,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:11,360 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2019-10-03 02:58:11,360 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2019-10-03 02:58:11,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:58:11,362 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,363 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:11,363 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1519246168, now seen corresponding path program 1 times [2019-10-03 02:58:11,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:11,523 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:11,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:11,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:11,524 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand 7 states. [2019-10-03 02:58:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:11,866 INFO L93 Difference]: Finished difference Result 188 states and 222 transitions. [2019-10-03 02:58:11,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:11,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:58:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:11,872 INFO L225 Difference]: With dead ends: 188 [2019-10-03 02:58:11,872 INFO L226 Difference]: Without dead ends: 188 [2019-10-03 02:58:11,873 INFO L640 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 [2019-10-03 02:58:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-03 02:58:11,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2019-10-03 02:58:11,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-10-03 02:58:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2019-10-03 02:58:11,900 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 51 [2019-10-03 02:58:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:11,900 INFO L475 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2019-10-03 02:58:11,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2019-10-03 02:58:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-03 02:58:11,905 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,906 INFO L411 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] [2019-10-03 02:58:11,906 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1651463691, now seen corresponding path program 1 times [2019-10-03 02:58:11,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,913 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:12,129 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:12,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:12,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:12,131 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand 10 states. [2019-10-03 02:58:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,624 INFO L93 Difference]: Finished difference Result 408 states and 511 transitions. [2019-10-03 02:58:12,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:12,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2019-10-03 02:58:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:12,640 INFO L225 Difference]: With dead ends: 408 [2019-10-03 02:58:12,640 INFO L226 Difference]: Without dead ends: 408 [2019-10-03 02:58:12,641 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-10-03 02:58:12,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 396. [2019-10-03 02:58:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-10-03 02:58:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 490 transitions. [2019-10-03 02:58:12,717 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 490 transitions. Word has length 54 [2019-10-03 02:58:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:12,718 INFO L475 AbstractCegarLoop]: Abstraction has 396 states and 490 transitions. [2019-10-03 02:58:12,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 490 transitions. [2019-10-03 02:58:12,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-03 02:58:12,721 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:12,721 INFO L411 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] [2019-10-03 02:58:12,722 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:12,722 INFO L82 PathProgramCache]: Analyzing trace with hash 244560101, now seen corresponding path program 1 times [2019-10-03 02:58:12,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:12,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:12,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,731 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:12,852 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,853 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:12,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:12,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:12,860 INFO L87 Difference]: Start difference. First operand 396 states and 490 transitions. Second operand 3 states. [2019-10-03 02:58:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,871 INFO L93 Difference]: Finished difference Result 354 states and 416 transitions. [2019-10-03 02:58:12,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:12,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-03 02:58:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:12,876 INFO L225 Difference]: With dead ends: 354 [2019-10-03 02:58:12,876 INFO L226 Difference]: Without dead ends: 354 [2019-10-03 02:58:12,877 INFO L640 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 [2019-10-03 02:58:12,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-03 02:58:12,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-03 02:58:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-03 02:58:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 416 transitions. [2019-10-03 02:58:12,901 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 416 transitions. Word has length 58 [2019-10-03 02:58:12,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:12,901 INFO L475 AbstractCegarLoop]: Abstraction has 354 states and 416 transitions. [2019-10-03 02:58:12,902 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 416 transitions. [2019-10-03 02:58:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-03 02:58:12,907 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:12,907 INFO L411 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] [2019-10-03 02:58:12,907 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:12,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1723103606, now seen corresponding path program 1 times [2019-10-03 02:58:12,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:12,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:12,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,912 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-03 02:58:13,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:13,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:13,049 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:13,051 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:13,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:13,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:13,052 INFO L87 Difference]: Start difference. First operand 354 states and 416 transitions. Second operand 6 states. [2019-10-03 02:58:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:13,196 INFO L93 Difference]: Finished difference Result 357 states and 417 transitions. [2019-10-03 02:58:13,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:13,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-10-03 02:58:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:13,197 INFO L225 Difference]: With dead ends: 357 [2019-10-03 02:58:13,197 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:13,198 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:13,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:13,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-10-03 02:58:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:13,199 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:13,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:13,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:13,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:13 BoogieIcfgContainer [2019-10-03 02:58:13,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:13,208 INFO L168 Benchmark]: Toolchain (without parser) took 4655.80 ms. Allocated memory was 140.5 MB in the beginning and 259.5 MB in the end (delta: 119.0 MB). Free memory was 87.3 MB in the beginning and 105.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 100.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,211 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.24 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 87.0 MB in the beginning and 166.5 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,214 INFO L168 Benchmark]: Boogie Preprocessor took 109.51 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 161.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,216 INFO L168 Benchmark]: RCFGBuilder took 1266.74 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 161.9 MB in the beginning and 197.7 MB in the end (delta: -35.7 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,218 INFO L168 Benchmark]: TraceAbstraction took 2640.50 ms. Allocated memory was 226.5 MB in the beginning and 259.5 MB in the end (delta: 33.0 MB). Free memory was 197.7 MB in the beginning and 105.9 MB in the end (delta: 91.8 MB). Peak memory consumption was 124.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,227 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.24 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 87.0 MB in the beginning and 166.5 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.51 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 161.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1266.74 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 161.9 MB in the beginning and 197.7 MB in the end (delta: -35.7 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2640.50 ms. Allocated memory was 226.5 MB in the beginning and 259.5 MB in the end (delta: 33.0 MB). Free memory was 197.7 MB in the beginning and 105.9 MB in the end (delta: 91.8 MB). Peak memory consumption was 124.8 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 35 procedures, 200 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 571 SDtfs, 365 SDslu, 1286 SDs, 0 SdLazy, 401 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s 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, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 36013 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...