/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:25:39,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:25:39,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:25:39,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:25:39,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:25:39,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:25:39,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:25:39,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:25:39,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:25:39,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:25:39,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:25:39,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:25:39,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:25:39,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:25:39,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:25:39,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:25:39,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:25:39,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:25:39,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:25:39,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:25:39,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:25:39,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:25:39,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:25:39,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:25:39,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:25:39,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:25:39,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:25:39,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:25:39,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:25:39,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:25:39,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:25:39,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:25:39,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:25:39,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:25:39,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:25:39,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:25:39,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:25:39,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:25:39,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:25:39,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:25:39,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:25:39,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:25:39,618 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:25:39,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:25:39,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:25:39,621 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:25:39,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:25:39,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:25:39,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:25:39,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:25:39,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:25:39,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:25:39,623 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:25:39,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:25:39,624 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:25:39,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:25:39,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:25:39,624 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:25:39,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:25:39,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:25:39,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:25:39,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:25:39,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:25:39,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:25:39,626 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:25:40,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:25:40,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:25:40,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:25:40,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:25:40,085 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:25:40,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-09-04 15:25:40,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94906f14c/0f91c11fdc964cd99d83b4847e1423b7/FLAG9b3a7e0f9 [2020-09-04 15:25:40,825 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:25:40,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-09-04 15:25:40,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94906f14c/0f91c11fdc964cd99d83b4847e1423b7/FLAG9b3a7e0f9 [2020-09-04 15:25:41,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94906f14c/0f91c11fdc964cd99d83b4847e1423b7 [2020-09-04 15:25:41,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:25:41,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:25:41,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:25:41,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:25:41,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:25:41,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41, skipping insertion in model container [2020-09-04 15:25:41,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:25:41,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:25:41,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:25:41,707 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:25:41,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:25:41,833 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:25:41,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41 WrapperNode [2020-09-04 15:25:41,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:25:41,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:25:41,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:25:41,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:25:41,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... [2020-09-04 15:25:41,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:25:41,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:25:41,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:25:41,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:25:41,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:25:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:25:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:25:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:25:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:25:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:25:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:25:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:25:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:25:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:25:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:25:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:25:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:25:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:25:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:25:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:25:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:25:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:25:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:25:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:25:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:25:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:25:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:25:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:25:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:25:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:25:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:25:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:25:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:25:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:25:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:25:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 15:25:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:25:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:25:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:25:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:25:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:25:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:25:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:25:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:25:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:25:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:25:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:25:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:25:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:25:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:25:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:25:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:25:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:25:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:25:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:25:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:25:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:25:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:25:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:25:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:25:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:25:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:25:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:25:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:25:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:25:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:25:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:25:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:25:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:25:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:25:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:25:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:25:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:25:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:25:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:25:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:25:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:25:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:25:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:25:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:25:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:25:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:25:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:25:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:25:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:25:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:25:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:25:43,306 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:25:43,307 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:25:43,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:25:43 BoogieIcfgContainer [2020-09-04 15:25:43,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:25:43,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:25:43,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:25:43,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:25:43,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:25:41" (1/3) ... [2020-09-04 15:25:43,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793f602b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:25:43, skipping insertion in model container [2020-09-04 15:25:43,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:41" (2/3) ... [2020-09-04 15:25:43,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793f602b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:25:43, skipping insertion in model container [2020-09-04 15:25:43,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:25:43" (3/3) ... [2020-09-04 15:25:43,324 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-09-04 15:25:43,336 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:25:43,347 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:25:43,371 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:25:43,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:25:43,401 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:25:43,401 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:25:43,401 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:25:43,401 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:25:43,402 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:25:43,402 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:25:43,402 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:25:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-09-04 15:25:43,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:25:43,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:43,454 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:25:43,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:43,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:43,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1296502413, now seen corresponding path program 1 times [2020-09-04 15:25:43,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:43,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233438909] [2020-09-04 15:25:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:43,549 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,220 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:25:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:25:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:25:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:44,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233438909] [2020-09-04 15:25:44,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:44,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:25:44,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101128785] [2020-09-04 15:25:44,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:25:44,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:44,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:25:44,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:25:44,527 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 3 states. [2020-09-04 15:25:46,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:46,112 INFO L93 Difference]: Finished difference Result 576 states and 686 transitions. [2020-09-04 15:25:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:25:46,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:25:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:46,136 INFO L225 Difference]: With dead ends: 576 [2020-09-04 15:25:46,136 INFO L226 Difference]: Without dead ends: 348 [2020-09-04 15:25:46,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:25:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-04 15:25:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2020-09-04 15:25:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-04 15:25:46,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 332 transitions. [2020-09-04 15:25:46,339 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 332 transitions. Word has length 153 [2020-09-04 15:25:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:46,340 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 332 transitions. [2020-09-04 15:25:46,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:25:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 332 transitions. [2020-09-04 15:25:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:25:46,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:46,346 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:25:46,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:25:46,347 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:46,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:46,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1707767493, now seen corresponding path program 1 times [2020-09-04 15:25:46,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:46,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826427761] [2020-09-04 15:25:46,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:46,351 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,796 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:46,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:25:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:25:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:25:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:46,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826427761] [2020-09-04 15:25:46,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:46,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:25:46,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119144593] [2020-09-04 15:25:46,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:25:46,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:46,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:25:46,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:25:46,881 INFO L87 Difference]: Start difference. First operand 302 states and 332 transitions. Second operand 4 states. [2020-09-04 15:25:47,534 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:48,894 INFO L93 Difference]: Finished difference Result 483 states and 549 transitions. [2020-09-04 15:25:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:25:48,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:25:48,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:48,900 INFO L225 Difference]: With dead ends: 483 [2020-09-04 15:25:48,900 INFO L226 Difference]: Without dead ends: 331 [2020-09-04 15:25:48,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:25:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-04 15:25:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 292. [2020-09-04 15:25:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-04 15:25:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 319 transitions. [2020-09-04 15:25:49,002 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 319 transitions. Word has length 154 [2020-09-04 15:25:49,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:49,003 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 319 transitions. [2020-09-04 15:25:49,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:25:49,003 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 319 transitions. [2020-09-04 15:25:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:25:49,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:49,007 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:25:49,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:25:49,007 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:49,008 INFO L82 PathProgramCache]: Analyzing trace with hash 359507624, now seen corresponding path program 1 times [2020-09-04 15:25:49,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:49,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051033340] [2020-09-04 15:25:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:49,011 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,412 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:25:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:25:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:25:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:25:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:49,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051033340] [2020-09-04 15:25:49,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:49,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:25:49,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565206320] [2020-09-04 15:25:49,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:25:49,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:49,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:25:49,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:25:49,601 INFO L87 Difference]: Start difference. First operand 292 states and 319 transitions. Second operand 10 states. [2020-09-04 15:25:50,257 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:50,728 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:25:51,089 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:25:51,327 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:51,630 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:51,866 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:52,859 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:56,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:56,216 INFO L93 Difference]: Finished difference Result 826 states and 965 transitions. [2020-09-04 15:25:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:25:56,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:25:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:56,222 INFO L225 Difference]: With dead ends: 826 [2020-09-04 15:25:56,222 INFO L226 Difference]: Without dead ends: 644 [2020-09-04 15:25:56,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:25:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-09-04 15:25:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 545. [2020-09-04 15:25:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-09-04 15:25:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 614 transitions. [2020-09-04 15:25:56,427 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 614 transitions. Word has length 167 [2020-09-04 15:25:56,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:56,428 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 614 transitions. [2020-09-04 15:25:56,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:25:56,429 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 614 transitions. [2020-09-04 15:25:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:25:56,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:56,432 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:25:56,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:25:56,433 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:56,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:56,433 INFO L82 PathProgramCache]: Analyzing trace with hash -585794347, now seen corresponding path program 1 times [2020-09-04 15:25:56,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:56,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709708445] [2020-09-04 15:25:56,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:56,437 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,792 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:56,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:25:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:25:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:25:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:25:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:56,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709708445] [2020-09-04 15:25:56,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:56,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:25:56,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855700469] [2020-09-04 15:25:56,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:25:56,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:56,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:25:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:25:56,996 INFO L87 Difference]: Start difference. First operand 545 states and 614 transitions. Second operand 9 states. [2020-09-04 15:25:57,542 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:59,823 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:00,211 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:00,627 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:01,015 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:26:01,325 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:01,651 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:01,983 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:26:03,205 INFO L93 Difference]: Finished difference Result 1505 states and 1817 transitions. [2020-09-04 15:26:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:26:03,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:26:03,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:26:03,217 INFO L225 Difference]: With dead ends: 1505 [2020-09-04 15:26:03,217 INFO L226 Difference]: Without dead ends: 1070 [2020-09-04 15:26:03,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:26:03,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2020-09-04 15:26:03,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 963. [2020-09-04 15:26:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-09-04 15:26:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1111 transitions. [2020-09-04 15:26:03,582 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1111 transitions. Word has length 172 [2020-09-04 15:26:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:26:03,583 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1111 transitions. [2020-09-04 15:26:03,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:26:03,583 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1111 transitions. [2020-09-04 15:26:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:26:03,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:03,589 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:26:03,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:26:03,589 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:03,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1663706585, now seen corresponding path program 1 times [2020-09-04 15:26:03,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:03,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334560602] [2020-09-04 15:26:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:03,593 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:26:03,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:26:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:26:03,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:26:03,938 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:26:03,938 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:26:03,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:26:03,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:26:03 BoogieIcfgContainer [2020-09-04 15:26:03,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:26:03,968 INFO L168 Benchmark]: Toolchain (without parser) took 22876.42 ms. Allocated memory was 139.5 MB in the beginning and 653.3 MB in the end (delta: 513.8 MB). Free memory was 101.6 MB in the beginning and 411.7 MB in the end (delta: -310.1 MB). Peak memory consumption was 203.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:03,969 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:26:03,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.91 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 170.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:03,973 INFO L168 Benchmark]: Boogie Preprocessor took 93.82 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:03,974 INFO L168 Benchmark]: RCFGBuilder took 1386.10 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 166.2 MB in the beginning and 170.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:03,975 INFO L168 Benchmark]: TraceAbstraction took 20649.59 ms. Allocated memory was 237.5 MB in the beginning and 653.3 MB in the end (delta: 415.8 MB). Free memory was 170.5 MB in the beginning and 411.7 MB in the end (delta: -241.2 MB). Peak memory consumption was 174.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:03,982 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.91 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 170.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.82 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1386.10 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 166.2 MB in the beginning and 170.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20649.59 ms. Allocated memory was 237.5 MB in the beginning and 653.3 MB in the end (delta: 415.8 MB). Free memory was 170.5 MB in the beginning and 411.7 MB in the end (delta: -241.2 MB). Peak memory consumption was 174.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L920] COND FALSE !(\read(pumpRunning)) [L927] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND FALSE !(\read(systemActive)) [L716] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L1013] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 665 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1163 SDtfs, 1889 SDslu, 1485 SDs, 0 SdLazy, 3777 SolverSat, 674 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 291 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...