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_spec1_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:49,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:49,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:49,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:49,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:49,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:49,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:49,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:49,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:49,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:49,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:49,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:49,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:49,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:49,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:49,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:49,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:49,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:49,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:49,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:49,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:49,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:49,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:49,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:49,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:49,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:49,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:49,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:49,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:49,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:49,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:49,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:49,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:49,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:49,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:49,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:49,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:49,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:49,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:49,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:49,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:49,605 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 [2019-09-10 02:47:49,636 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:49,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:49,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:49,637 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:49,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:49,638 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:49,639 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:49,639 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:49,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:49,639 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:49,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:49,642 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:49,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:49,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:49,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:49,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:49,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:49,643 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:49,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:49,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:49,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:49,644 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:49,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:49,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:49,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:49,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:49,646 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:49,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:49,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:49,646 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:49,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:49,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:49,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:49,698 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:49,698 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:49,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2019-09-10 02:47:49,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e450911eb/a6120a6c66ae42d0b2207496c55ca721/FLAGf7e848b90 [2019-09-10 02:47:50,315 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:50,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2019-09-10 02:47:50,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e450911eb/a6120a6c66ae42d0b2207496c55ca721/FLAGf7e848b90 [2019-09-10 02:47:50,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e450911eb/a6120a6c66ae42d0b2207496c55ca721 [2019-09-10 02:47:50,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:50,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:50,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:50,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:50,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:50,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:50" (1/1) ... [2019-09-10 02:47:50,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5338cd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:50, skipping insertion in model container [2019-09-10 02:47:50,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:50" (1/1) ... [2019-09-10 02:47:50,606 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:50,663 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:51,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:51,101 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:51,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:51,232 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:51,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51 WrapperNode [2019-09-10 02:47:51,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:51,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:51,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:51,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:51,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:51,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:51,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:51,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:51,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (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 [2019-09-10 02:47:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:47:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:47:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:47:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:47:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:52,475 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:52,476 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:52,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:52 BoogieIcfgContainer [2019-09-10 02:47:52,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:52,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:52,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:52,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:52,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:50" (1/3) ... [2019-09-10 02:47:52,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b82fc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:52, skipping insertion in model container [2019-09-10 02:47:52,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (2/3) ... [2019-09-10 02:47:52,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b82fc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:52, skipping insertion in model container [2019-09-10 02:47:52,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:52" (3/3) ... [2019-09-10 02:47:52,487 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2019-09-10 02:47:52,499 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:52,509 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:52,529 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:52,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:52,564 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:52,564 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:52,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:52,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:52,565 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:52,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:52,566 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-09-10 02:47:52,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:52,607 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:52,608 INFO L399 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] [2019-09-10 02:47:52,611 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:52,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:52,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1406508770, now seen corresponding path program 1 times [2019-09-10 02:47:52,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:52,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:52,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:53,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:53,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:53,045 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:53,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:53,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:53,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:53,074 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-09-10 02:47:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:53,133 INFO L93 Difference]: Finished difference Result 138 states and 161 transitions. [2019-09-10 02:47:53,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:53,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:53,160 INFO L225 Difference]: With dead ends: 138 [2019-09-10 02:47:53,169 INFO L226 Difference]: Without dead ends: 127 [2019-09-10 02:47:53,175 INFO L628 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 [2019-09-10 02:47:53,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-10 02:47:53,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-09-10 02:47:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-10 02:47:53,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2019-09-10 02:47:53,275 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 46 [2019-09-10 02:47:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:53,276 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2019-09-10 02:47:53,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:53,276 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2019-09-10 02:47:53,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:53,287 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:53,287 INFO L399 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] [2019-09-10 02:47:53,288 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:53,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:53,289 INFO L82 PathProgramCache]: Analyzing trace with hash 297997714, now seen corresponding path program 1 times [2019-09-10 02:47:53,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:53,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:53,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,291 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:53,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:53,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:53,451 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:53,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:53,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:53,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:53,453 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 3 states. [2019-09-10 02:47:53,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:53,469 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2019-09-10 02:47:53,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:53,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:53,472 INFO L225 Difference]: With dead ends: 118 [2019-09-10 02:47:53,472 INFO L226 Difference]: Without dead ends: 118 [2019-09-10 02:47:53,473 INFO L628 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 [2019-09-10 02:47:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-10 02:47:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-09-10 02:47:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-10 02:47:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2019-09-10 02:47:53,484 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 47 [2019-09-10 02:47:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:53,484 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2019-09-10 02:47:53,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:53,485 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2019-09-10 02:47:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:47:53,487 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:53,487 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:53,487 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:53,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:53,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1416539958, now seen corresponding path program 1 times [2019-09-10 02:47:53,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:53,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:53,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,489 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:53,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:53,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:53,605 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:53,606 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:53,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:53,607 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 7 states. [2019-09-10 02:47:53,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:53,958 INFO L93 Difference]: Finished difference Result 118 states and 136 transitions. [2019-09-10 02:47:53,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:53,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:47:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:53,961 INFO L225 Difference]: With dead ends: 118 [2019-09-10 02:47:53,961 INFO L226 Difference]: Without dead ends: 118 [2019-09-10 02:47:53,962 INFO L628 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 [2019-09-10 02:47:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-10 02:47:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-09-10 02:47:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-10 02:47:53,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2019-09-10 02:47:53,974 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 52 [2019-09-10 02:47:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:53,975 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2019-09-10 02:47:53,975 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2019-09-10 02:47:53,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:47:53,977 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:53,978 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:53,978 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:53,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:53,978 INFO L82 PathProgramCache]: Analyzing trace with hash -819223945, now seen corresponding path program 1 times [2019-09-10 02:47:53,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:53,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:53,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,980 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:54,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:54,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:47:54,096 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:54,097 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:47:54,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:47:54,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:47:54,098 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand 5 states. [2019-09-10 02:47:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:54,703 INFO L93 Difference]: Finished difference Result 217 states and 251 transitions. [2019-09-10 02:47:54,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:47:54,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-10 02:47:54,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:54,713 INFO L225 Difference]: With dead ends: 217 [2019-09-10 02:47:54,713 INFO L226 Difference]: Without dead ends: 217 [2019-09-10 02:47:54,713 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-09-10 02:47:54,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 198. [2019-09-10 02:47:54,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-09-10 02:47:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 225 transitions. [2019-09-10 02:47:54,744 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 225 transitions. Word has length 65 [2019-09-10 02:47:54,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:54,747 INFO L475 AbstractCegarLoop]: Abstraction has 198 states and 225 transitions. [2019-09-10 02:47:54,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:47:54,747 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 225 transitions. [2019-09-10 02:47:54,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 02:47:54,748 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:54,748 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:54,749 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:54,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:54,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1180966768, now seen corresponding path program 1 times [2019-09-10 02:47:54,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:54,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:54,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:54,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:54,753 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:54,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:54,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:54,895 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:54,896 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:54,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:54,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:54,900 INFO L87 Difference]: Start difference. First operand 198 states and 225 transitions. Second operand 6 states. [2019-09-10 02:47:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,101 INFO L93 Difference]: Finished difference Result 357 states and 407 transitions. [2019-09-10 02:47:55,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:55,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-10 02:47:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,106 INFO L225 Difference]: With dead ends: 357 [2019-09-10 02:47:55,106 INFO L226 Difference]: Without dead ends: 357 [2019-09-10 02:47:55,107 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:47:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-09-10 02:47:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 351. [2019-09-10 02:47:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-09-10 02:47:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 400 transitions. [2019-09-10 02:47:55,146 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 400 transitions. Word has length 79 [2019-09-10 02:47:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,148 INFO L475 AbstractCegarLoop]: Abstraction has 351 states and 400 transitions. [2019-09-10 02:47:55,148 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 400 transitions. [2019-09-10 02:47:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:47:55,150 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,151 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:55,151 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1165038356, now seen corresponding path program 1 times [2019-09-10 02:47:55,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,153 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:55,294 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:55,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:55,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:55,296 INFO L87 Difference]: Start difference. First operand 351 states and 400 transitions. Second operand 7 states. [2019-09-10 02:47:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,926 INFO L93 Difference]: Finished difference Result 383 states and 451 transitions. [2019-09-10 02:47:55,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:47:55,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-09-10 02:47:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,930 INFO L225 Difference]: With dead ends: 383 [2019-09-10 02:47:55,930 INFO L226 Difference]: Without dead ends: 383 [2019-09-10 02:47:55,931 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:47:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-09-10 02:47:55,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2019-09-10 02:47:55,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-09-10 02:47:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 399 transitions. [2019-09-10 02:47:55,950 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 399 transitions. Word has length 83 [2019-09-10 02:47:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,950 INFO L475 AbstractCegarLoop]: Abstraction has 351 states and 399 transitions. [2019-09-10 02:47:55,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 399 transitions. [2019-09-10 02:47:55,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:47:55,952 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,952 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:55,952 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1066260182, now seen corresponding path program 1 times [2019-09-10 02:47:55,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,954 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:56,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:56,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:56,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:56,064 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:56,065 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:56,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:56,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:56,067 INFO L87 Difference]: Start difference. First operand 351 states and 399 transitions. Second operand 6 states. [2019-09-10 02:47:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:56,102 INFO L93 Difference]: Finished difference Result 361 states and 409 transitions. [2019-09-10 02:47:56,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:56,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-10 02:47:56,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:56,108 INFO L225 Difference]: With dead ends: 361 [2019-09-10 02:47:56,108 INFO L226 Difference]: Without dead ends: 361 [2019-09-10 02:47:56,108 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-09-10 02:47:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-09-10 02:47:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-09-10 02:47:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2019-09-10 02:47:56,125 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 84 [2019-09-10 02:47:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:56,125 INFO L475 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2019-09-10 02:47:56,126 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2019-09-10 02:47:56,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:47:56,127 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:56,127 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:56,128 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:56,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1088892436, now seen corresponding path program 1 times [2019-09-10 02:47:56,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:56,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:56,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,129 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:56,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:56,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:47:56,239 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:56,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:47:56,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:47:56,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:56,244 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 8 states. [2019-09-10 02:47:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:56,281 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2019-09-10 02:47:56,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:56,282 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-09-10 02:47:56,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:56,285 INFO L225 Difference]: With dead ends: 375 [2019-09-10 02:47:56,285 INFO L226 Difference]: Without dead ends: 375 [2019-09-10 02:47:56,287 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-09-10 02:47:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 369. [2019-09-10 02:47:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-09-10 02:47:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 417 transitions. [2019-09-10 02:47:56,311 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 417 transitions. Word has length 84 [2019-09-10 02:47:56,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:56,311 INFO L475 AbstractCegarLoop]: Abstraction has 369 states and 417 transitions. [2019-09-10 02:47:56,311 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:47:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 417 transitions. [2019-09-10 02:47:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:47:56,313 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:56,313 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:56,313 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:56,313 INFO L82 PathProgramCache]: Analyzing trace with hash 2114384435, now seen corresponding path program 1 times [2019-09-10 02:47:56,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:56,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:56,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,315 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:56,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:56,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:47:56,481 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:56,482 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:47:56,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:47:56,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:56,483 INFO L87 Difference]: Start difference. First operand 369 states and 417 transitions. Second operand 4 states. [2019-09-10 02:47:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:56,747 INFO L93 Difference]: Finished difference Result 778 states and 921 transitions. [2019-09-10 02:47:56,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:47:56,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-09-10 02:47:56,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:56,755 INFO L225 Difference]: With dead ends: 778 [2019-09-10 02:47:56,755 INFO L226 Difference]: Without dead ends: 778 [2019-09-10 02:47:56,756 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:56,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2019-09-10 02:47:56,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 501. [2019-09-10 02:47:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-09-10 02:47:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 562 transitions. [2019-09-10 02:47:56,805 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 562 transitions. Word has length 84 [2019-09-10 02:47:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:56,806 INFO L475 AbstractCegarLoop]: Abstraction has 501 states and 562 transitions. [2019-09-10 02:47:56,807 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:47:56,807 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 562 transitions. [2019-09-10 02:47:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 02:47:56,812 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:56,812 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:56,812 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:56,813 INFO L82 PathProgramCache]: Analyzing trace with hash 166319437, now seen corresponding path program 1 times [2019-09-10 02:47:56,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:56,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:56,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,815 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:58,018 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:47:58,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:58 BoogieIcfgContainer [2019-09-10 02:47:58,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:58,204 INFO L168 Benchmark]: Toolchain (without parser) took 7614.50 ms. Allocated memory was 142.1 MB in the beginning and 305.7 MB in the end (delta: 163.6 MB). Free memory was 87.7 MB in the beginning and 189.2 MB in the end (delta: -101.5 MB). Peak memory consumption was 169.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:58,205 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:47:58,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.53 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 87.4 MB in the beginning and 166.1 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:58,207 INFO L168 Benchmark]: Boogie Preprocessor took 82.73 ms. Allocated memory is still 200.8 MB. Free memory was 166.1 MB in the beginning and 162.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:58,208 INFO L168 Benchmark]: RCFGBuilder took 1161.54 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 162.0 MB in the beginning and 195.5 MB in the end (delta: -33.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:58,209 INFO L168 Benchmark]: TraceAbstraction took 5722.17 ms. Allocated memory was 230.2 MB in the beginning and 305.7 MB in the end (delta: 75.5 MB). Free memory was 194.2 MB in the beginning and 189.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 187.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:58,213 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.53 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 87.4 MB in the beginning and 166.1 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.73 ms. Allocated memory is still 200.8 MB. Free memory was 166.1 MB in the beginning and 162.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1161.54 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 162.0 MB in the beginning and 195.5 MB in the end (delta: -33.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5722.17 ms. Allocated memory was 230.2 MB in the beginning and 305.7 MB in the end (delta: 75.5 MB). Free memory was 194.2 MB in the beginning and 189.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 187.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 837]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L776] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L778] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, waterLevel=1] [L788] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L788] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=8, waterLevel=2] [L798] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=8, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___2)) [L812] tmp___1 = __VERIFIER_nondet_int() [L814] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=8, tmp___1=1, tmp___2=0, waterLevel=2] [L821] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L660] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L616] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L923] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L621] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] tmp = isHighWaterLevel() [L623] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L625] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L660] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L596] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L602] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L183] int tmp ; [L184] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L188] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L188] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L188] tmp = isMethaneLevelCritical() [L190] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L192] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L192] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L192] tmp___0 = isPumpRunning() [L194] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L196] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L837] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 229 locations, 1 error locations. UNSAFE Result, 5.6s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1345 SDtfs, 755 SDslu, 2794 SDs, 0 SdLazy, 974 SolverSat, 226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=9, 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 340 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 76469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...