/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 12:32:00,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 12:32:00,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 12:32:00,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 12:32:00,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 12:32:00,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 12:32:00,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 12:32:00,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 12:32:00,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 12:32:00,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 12:32:00,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 12:32:00,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 12:32:00,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 12:32:00,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 12:32:00,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 12:32:00,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 12:32:00,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 12:32:00,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 12:32:00,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 12:32:00,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 12:32:00,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 12:32:00,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 12:32:01,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 12:32:01,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 12:32:01,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 12:32:01,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 12:32:01,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 12:32:01,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 12:32:01,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 12:32:01,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 12:32:01,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 12:32:01,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 12:32:01,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 12:32:01,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 12:32:01,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 12:32:01,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 12:32:01,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 12:32:01,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 12:32:01,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 12:32:01,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 12:32:01,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 12:32:01,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 12:32:01,043 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 12:32:01,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 12:32:01,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 12:32:01,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 12:32:01,045 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 12:32:01,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 12:32:01,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 12:32:01,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 12:32:01,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 12:32:01,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 12:32:01,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 12:32:01,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 12:32:01,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 12:32:01,047 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 12:32:01,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 12:32:01,047 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 12:32:01,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 12:32:01,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 12:32:01,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 12:32:01,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 12:32:01,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 12:32:01,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 12:32:01,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 12:32:01,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 12:32:01,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 12:32:01,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 12:32:01,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 12:32:01,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 12:32:01,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 12:32:01,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 12:32:01,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 12:32:01,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 12:32:01,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 12:32:01,505 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 12:32:01,505 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 12:32:01,507 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-04 12:32:01,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa6dd4e79/07c917388a6849be9f28df2305189031/FLAG3da05c13f [2020-09-04 12:32:02,225 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 12:32:02,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-04 12:32:02,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa6dd4e79/07c917388a6849be9f28df2305189031/FLAG3da05c13f [2020-09-04 12:32:02,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa6dd4e79/07c917388a6849be9f28df2305189031 [2020-09-04 12:32:02,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 12:32:02,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 12:32:02,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 12:32:02,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 12:32:02,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 12:32:02,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:32:02" (1/1) ... [2020-09-04 12:32:02,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:02, skipping insertion in model container [2020-09-04 12:32:02,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:32:02" (1/1) ... [2020-09-04 12:32:02,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 12:32:02,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 12:32:03,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:32:03,088 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 12:32:03,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:32:03,201 INFO L208 MainTranslator]: Completed translation [2020-09-04 12:32:03,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03 WrapperNode [2020-09-04 12:32:03,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 12:32:03,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 12:32:03,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 12:32:03,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 12:32:03,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (1/1) ... [2020-09-04 12:32:03,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 12:32:03,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 12:32:03,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 12:32:03,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 12:32:03,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (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 12:32:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 12:32:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 12:32:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 12:32:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 12:32:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 12:32:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 12:32:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 12:32:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 12:32:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 12:32:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 12:32:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 12:32:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 12:32:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 12:32:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 12:32:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 12:32:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 12:32:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-04 12:32:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-04 12:32:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 12:32:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 12:32:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 12:32:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 12:32:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 12:32:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 12:32:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 12:32:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 12:32:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 12:32:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 12:32:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 12:32:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 12:32:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 12:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 12:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 12:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 12:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 12:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 12:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 12:32:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 12:32:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 12:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 12:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 12:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 12:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 12:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 12:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 12:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 12:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 12:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 12:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 12:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 12:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 12:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 12:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-04 12:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 12:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 12:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 12:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 12:32:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 12:32:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 12:32:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 12:32:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 12:32:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 12:32:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 12:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 12:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 12:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 12:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 12:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 12:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 12:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 12:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 12:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 12:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 12:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 12:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 12:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 12:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 12:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 12:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 12:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 12:32:04,389 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 12:32:04,390 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 12:32:04,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:32:04 BoogieIcfgContainer [2020-09-04 12:32:04,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 12:32:04,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 12:32:04,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 12:32:04,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 12:32:04,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 12:32:02" (1/3) ... [2020-09-04 12:32:04,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe24e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:32:04, skipping insertion in model container [2020-09-04 12:32:04,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:32:03" (2/3) ... [2020-09-04 12:32:04,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe24e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:32:04, skipping insertion in model container [2020-09-04 12:32:04,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:32:04" (3/3) ... [2020-09-04 12:32:04,405 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-04 12:32:04,416 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 12:32:04,426 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 12:32:04,449 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 12:32:04,481 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 12:32:04,481 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 12:32:04,481 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 12:32:04,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 12:32:04,482 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 12:32:04,482 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 12:32:04,482 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 12:32:04,482 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 12:32:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-09-04 12:32:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-04 12:32:04,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:04,522 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] [2020-09-04 12:32:04,523 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:04,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1720198034, now seen corresponding path program 1 times [2020-09-04 12:32:04,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:04,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795138484] [2020-09-04 12:32:04,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,325 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-04 12:32:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-04 12:32:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:05,427 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 12:32:05,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795138484] [2020-09-04 12:32:05,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:05,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 12:32:05,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146477785] [2020-09-04 12:32:05,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 12:32:05,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 12:32:05,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 12:32:05,460 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 4 states. [2020-09-04 12:32:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:06,477 INFO L93 Difference]: Finished difference Result 258 states and 340 transitions. [2020-09-04 12:32:06,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 12:32:06,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-04 12:32:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:06,503 INFO L225 Difference]: With dead ends: 258 [2020-09-04 12:32:06,504 INFO L226 Difference]: Without dead ends: 145 [2020-09-04 12:32:06,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 12:32:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-04 12:32:06,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-09-04 12:32:06,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-04 12:32:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-04 12:32:06,608 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 51 [2020-09-04 12:32:06,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:06,609 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-04 12:32:06,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 12:32:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-04 12:32:06,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 12:32:06,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:06,616 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] [2020-09-04 12:32:06,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 12:32:06,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:06,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:06,618 INFO L82 PathProgramCache]: Analyzing trace with hash 220132220, now seen corresponding path program 1 times [2020-09-04 12:32:06,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:06,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10420356] [2020-09-04 12:32:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,013 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:07,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 12:32:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 12:32:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:07,100 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 12:32:07,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10420356] [2020-09-04 12:32:07,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:07,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 12:32:07,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490150259] [2020-09-04 12:32:07,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 12:32:07,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:07,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 12:32:07,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 12:32:07,108 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 5 states. [2020-09-04 12:32:07,562 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:08,426 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2020-09-04 12:32:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 12:32:08,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-04 12:32:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:08,430 INFO L225 Difference]: With dead ends: 199 [2020-09-04 12:32:08,430 INFO L226 Difference]: Without dead ends: 135 [2020-09-04 12:32:08,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 12:32:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-04 12:32:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-04 12:32:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-04 12:32:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-09-04 12:32:08,470 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 52 [2020-09-04 12:32:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:08,470 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-09-04 12:32:08,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 12:32:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-09-04 12:32:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 12:32:08,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:08,473 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] [2020-09-04 12:32:08,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 12:32:08,474 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:08,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:08,474 INFO L82 PathProgramCache]: Analyzing trace with hash 889380391, now seen corresponding path program 1 times [2020-09-04 12:32:08,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:08,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176223562] [2020-09-04 12:32:08,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,835 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:08,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-04 12:32:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 12:32:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:08,972 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 12:32:08,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176223562] [2020-09-04 12:32:08,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:08,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 12:32:08,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092750657] [2020-09-04 12:32:08,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 12:32:08,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:08,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 12:32:08,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:32:08,975 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 9 states. [2020-09-04 12:32:09,352 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:09,722 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:10,054 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:10,378 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:11,624 INFO L93 Difference]: Finished difference Result 212 states and 266 transitions. [2020-09-04 12:32:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 12:32:11,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-09-04 12:32:11,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:11,634 INFO L225 Difference]: With dead ends: 212 [2020-09-04 12:32:11,634 INFO L226 Difference]: Without dead ends: 135 [2020-09-04 12:32:11,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-04 12:32:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-04 12:32:11,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-04 12:32:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-04 12:32:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-09-04 12:32:11,666 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 57 [2020-09-04 12:32:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:11,667 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-09-04 12:32:11,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 12:32:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-09-04 12:32:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-04 12:32:11,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:11,669 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] [2020-09-04 12:32:11,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 12:32:11,669 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:11,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:11,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1390934310, now seen corresponding path program 1 times [2020-09-04 12:32:11,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:11,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826070332] [2020-09-04 12:32:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,029 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 12:32:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-04 12:32:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-04 12:32:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:12,181 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 12:32:12,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826070332] [2020-09-04 12:32:12,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:12,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 12:32:12,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104643770] [2020-09-04 12:32:12,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 12:32:12,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:12,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 12:32:12,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 12:32:12,184 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 7 states. [2020-09-04 12:32:12,550 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:13,988 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:14,615 INFO L93 Difference]: Finished difference Result 302 states and 382 transitions. [2020-09-04 12:32:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 12:32:14,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-04 12:32:14,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:14,620 INFO L225 Difference]: With dead ends: 302 [2020-09-04 12:32:14,620 INFO L226 Difference]: Without dead ends: 225 [2020-09-04 12:32:14,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-04 12:32:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-09-04 12:32:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 176. [2020-09-04 12:32:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-04 12:32:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 203 transitions. [2020-09-04 12:32:14,667 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 203 transitions. Word has length 65 [2020-09-04 12:32:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:14,668 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 203 transitions. [2020-09-04 12:32:14,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 12:32:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 203 transitions. [2020-09-04 12:32:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-04 12:32:14,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:14,670 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] [2020-09-04 12:32:14,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 12:32:14,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1075030192, now seen corresponding path program 1 times [2020-09-04 12:32:14,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:14,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129143682] [2020-09-04 12:32:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,005 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:15,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 12:32:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 12:32:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 12:32:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:15,175 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 12:32:15,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129143682] [2020-09-04 12:32:15,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:15,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-04 12:32:15,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55183260] [2020-09-04 12:32:15,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 12:32:15,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:15,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 12:32:15,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-04 12:32:15,178 INFO L87 Difference]: Start difference. First operand 176 states and 203 transitions. Second operand 12 states. [2020-09-04 12:32:15,746 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:16,026 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:16,364 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:17,248 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:17,580 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 12:32:17,932 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:18,265 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:19,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:19,191 INFO L93 Difference]: Finished difference Result 372 states and 462 transitions. [2020-09-04 12:32:19,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 12:32:19,192 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-09-04 12:32:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:19,195 INFO L225 Difference]: With dead ends: 372 [2020-09-04 12:32:19,195 INFO L226 Difference]: Without dead ends: 224 [2020-09-04 12:32:19,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-09-04 12:32:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-04 12:32:19,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 181. [2020-09-04 12:32:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-04 12:32:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 208 transitions. [2020-09-04 12:32:19,242 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 208 transitions. Word has length 79 [2020-09-04 12:32:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:19,242 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 208 transitions. [2020-09-04 12:32:19,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 12:32:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 208 transitions. [2020-09-04 12:32:19,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-04 12:32:19,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:19,244 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] [2020-09-04 12:32:19,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 12:32:19,245 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:19,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:19,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1584503282, now seen corresponding path program 1 times [2020-09-04 12:32:19,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:19,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449147908] [2020-09-04 12:32:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,697 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:19,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 12:32:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 12:32:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 12:32:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:19,840 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 12:32:19,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449147908] [2020-09-04 12:32:19,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:19,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 12:32:19,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40673935] [2020-09-04 12:32:19,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 12:32:19,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:19,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 12:32:19,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:32:19,842 INFO L87 Difference]: Start difference. First operand 181 states and 208 transitions. Second operand 9 states. [2020-09-04 12:32:20,253 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:21,561 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:21,897 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:22,215 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:22,493 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:23,484 INFO L93 Difference]: Finished difference Result 539 states and 685 transitions. [2020-09-04 12:32:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 12:32:23,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-09-04 12:32:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:23,490 INFO L225 Difference]: With dead ends: 539 [2020-09-04 12:32:23,490 INFO L226 Difference]: Without dead ends: 386 [2020-09-04 12:32:23,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-04 12:32:23,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-04 12:32:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 310. [2020-09-04 12:32:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-09-04 12:32:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 356 transitions. [2020-09-04 12:32:23,555 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 356 transitions. Word has length 79 [2020-09-04 12:32:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:23,555 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 356 transitions. [2020-09-04 12:32:23,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 12:32:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 356 transitions. [2020-09-04 12:32:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-04 12:32:23,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:23,558 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] [2020-09-04 12:32:23,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 12:32:23,558 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:23,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:23,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1898506966, now seen corresponding path program 1 times [2020-09-04 12:32:23,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:23,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770938999] [2020-09-04 12:32:23,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:23,944 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 12:32:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 12:32:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-04 12:32:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-04 12:32:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:24,141 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 12:32:24,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770938999] [2020-09-04 12:32:24,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:24,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 12:32:24,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851439556] [2020-09-04 12:32:24,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 12:32:24,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:24,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 12:32:24,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-04 12:32:24,145 INFO L87 Difference]: Start difference. First operand 310 states and 356 transitions. Second operand 10 states. [2020-09-04 12:32:24,573 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:25,831 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:26,116 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:26,457 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:26,812 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:28,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:28,069 INFO L93 Difference]: Finished difference Result 706 states and 881 transitions. [2020-09-04 12:32:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 12:32:28,070 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-09-04 12:32:28,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:28,075 INFO L225 Difference]: With dead ends: 706 [2020-09-04 12:32:28,075 INFO L226 Difference]: Without dead ends: 424 [2020-09-04 12:32:28,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-09-04 12:32:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-04 12:32:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 309. [2020-09-04 12:32:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-09-04 12:32:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 353 transitions. [2020-09-04 12:32:28,139 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 353 transitions. Word has length 83 [2020-09-04 12:32:28,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:28,140 INFO L479 AbstractCegarLoop]: Abstraction has 309 states and 353 transitions. [2020-09-04 12:32:28,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 12:32:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 353 transitions. [2020-09-04 12:32:28,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-04 12:32:28,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:28,142 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] [2020-09-04 12:32:28,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 12:32:28,142 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:28,143 INFO L82 PathProgramCache]: Analyzing trace with hash -226819900, now seen corresponding path program 1 times [2020-09-04 12:32:28,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:28,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531691916] [2020-09-04 12:32:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,537 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:28,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 12:32:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 12:32:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-04 12:32:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-04 12:32:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:28,749 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 12:32:28,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531691916] [2020-09-04 12:32:28,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:28,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-04 12:32:28,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291403525] [2020-09-04 12:32:28,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 12:32:28,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:28,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 12:32:28,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-04 12:32:28,755 INFO L87 Difference]: Start difference. First operand 309 states and 353 transitions. Second operand 12 states. [2020-09-04 12:32:29,291 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:29,597 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:29,894 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:30,689 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:31,009 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:31,333 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:32,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:32,350 INFO L93 Difference]: Finished difference Result 713 states and 897 transitions. [2020-09-04 12:32:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 12:32:32,351 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-09-04 12:32:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:32,354 INFO L225 Difference]: With dead ends: 713 [2020-09-04 12:32:32,355 INFO L226 Difference]: Without dead ends: 432 [2020-09-04 12:32:32,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-04 12:32:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-04 12:32:32,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 317. [2020-09-04 12:32:32,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-04 12:32:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 361 transitions. [2020-09-04 12:32:32,425 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 361 transitions. Word has length 84 [2020-09-04 12:32:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:32,425 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 361 transitions. [2020-09-04 12:32:32,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 12:32:32,425 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 361 transitions. [2020-09-04 12:32:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-04 12:32:32,427 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:32,427 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] [2020-09-04 12:32:32,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 12:32:32,428 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:32,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1613023294, now seen corresponding path program 1 times [2020-09-04 12:32:32,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:32,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849530947] [2020-09-04 12:32:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,738 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 12:32:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 12:32:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-04 12:32:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-04 12:32:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:32,894 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 12:32:32,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849530947] [2020-09-04 12:32:32,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:32,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 12:32:32,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27246099] [2020-09-04 12:32:32,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 12:32:32,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:32,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 12:32:32,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-04 12:32:32,896 INFO L87 Difference]: Start difference. First operand 317 states and 361 transitions. Second operand 10 states. [2020-09-04 12:32:33,957 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:32:34,273 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-04 12:32:34,579 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:34,874 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 12:32:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:35,807 INFO L93 Difference]: Finished difference Result 715 states and 895 transitions. [2020-09-04 12:32:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 12:32:35,808 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-09-04 12:32:35,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:35,813 INFO L225 Difference]: With dead ends: 715 [2020-09-04 12:32:35,813 INFO L226 Difference]: Without dead ends: 426 [2020-09-04 12:32:35,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-04 12:32:35,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-04 12:32:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 317. [2020-09-04 12:32:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-04 12:32:35,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 359 transitions. [2020-09-04 12:32:35,916 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 359 transitions. Word has length 84 [2020-09-04 12:32:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:35,920 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 359 transitions. [2020-09-04 12:32:35,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 12:32:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 359 transitions. [2020-09-04 12:32:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-04 12:32:35,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:35,926 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] [2020-09-04 12:32:35,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 12:32:35,927 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:35,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:35,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1884470469, now seen corresponding path program 1 times [2020-09-04 12:32:35,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:35,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303806513] [2020-09-04 12:32:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,358 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 12:32:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 12:32:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-04 12:32:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-04 12:32:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:36,520 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 12:32:36,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303806513] [2020-09-04 12:32:36,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:36,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 12:32:36,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824678984] [2020-09-04 12:32:36,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 12:32:36,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:36,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 12:32:36,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 12:32:36,522 INFO L87 Difference]: Start difference. First operand 317 states and 359 transitions. Second operand 8 states. [2020-09-04 12:32:36,927 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:37,751 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:40,029 INFO L93 Difference]: Finished difference Result 1041 states and 1362 transitions. [2020-09-04 12:32:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 12:32:40,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-09-04 12:32:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:40,035 INFO L225 Difference]: With dead ends: 1041 [2020-09-04 12:32:40,036 INFO L226 Difference]: Without dead ends: 752 [2020-09-04 12:32:40,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-09-04 12:32:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-09-04 12:32:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 607. [2020-09-04 12:32:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-04 12:32:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 711 transitions. [2020-09-04 12:32:40,244 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 711 transitions. Word has length 84 [2020-09-04 12:32:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:40,244 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 711 transitions. [2020-09-04 12:32:40,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 12:32:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 711 transitions. [2020-09-04 12:32:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-04 12:32:40,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:40,249 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] [2020-09-04 12:32:40,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 12:32:40,250 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:40,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:40,250 INFO L82 PathProgramCache]: Analyzing trace with hash 713728159, now seen corresponding path program 1 times [2020-09-04 12:32:40,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:40,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231210938] [2020-09-04 12:32:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,650 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:32:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:32:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:32:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:32:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:32:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:32:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 12:32:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-04 12:32:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-04 12:32:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 12:32:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:32:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:32:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:32:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-04 12:32:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 12:32:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:32:40,760 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 12:32:40,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231210938] [2020-09-04 12:32:40,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:32:40,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 12:32:40,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538622588] [2020-09-04 12:32:40,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 12:32:40,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:32:40,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 12:32:40,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 12:32:40,763 INFO L87 Difference]: Start difference. First operand 607 states and 711 transitions. Second operand 8 states. [2020-09-04 12:32:41,148 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:32:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:32:43,162 INFO L93 Difference]: Finished difference Result 1199 states and 1560 transitions. [2020-09-04 12:32:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 12:32:43,163 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-09-04 12:32:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:32:43,172 INFO L225 Difference]: With dead ends: 1199 [2020-09-04 12:32:43,172 INFO L226 Difference]: Without dead ends: 1196 [2020-09-04 12:32:43,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=463, Unknown=0, NotChecked=0, Total=650 [2020-09-04 12:32:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2020-09-04 12:32:43,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 975. [2020-09-04 12:32:43,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-09-04 12:32:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1150 transitions. [2020-09-04 12:32:43,327 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1150 transitions. Word has length 88 [2020-09-04 12:32:43,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:32:43,328 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1150 transitions. [2020-09-04 12:32:43,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 12:32:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1150 transitions. [2020-09-04 12:32:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-04 12:32:43,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:32:43,331 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:43,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 12:32:43,332 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:32:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:32:43,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1128183326, now seen corresponding path program 1 times [2020-09-04 12:32:43,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:32:43,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070725159] [2020-09-04 12:32:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:32:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:32:43,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:32:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:32:43,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:32:43,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-04 12:32:43,641 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 12:32:43,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-04 12:32:43,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 12:32:43 BoogieIcfgContainer [2020-09-04 12:32:43,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 12:32:43,894 INFO L168 Benchmark]: Toolchain (without parser) took 41409.88 ms. Allocated memory was 141.0 MB in the beginning and 675.3 MB in the end (delta: 534.2 MB). Free memory was 103.8 MB in the beginning and 613.8 MB in the end (delta: -510.0 MB). Peak memory consumption was 556.4 MB. Max. memory is 7.1 GB. [2020-09-04 12:32:43,895 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 12:32:43,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.06 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.6 MB in the beginning and 173.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-04 12:32:43,899 INFO L168 Benchmark]: Boogie Preprocessor took 96.62 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-04 12:32:43,900 INFO L168 Benchmark]: RCFGBuilder took 1096.29 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 169.0 MB in the beginning and 198.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-09-04 12:32:43,903 INFO L168 Benchmark]: TraceAbstraction took 39495.03 ms. Allocated memory was 238.0 MB in the beginning and 675.3 MB in the end (delta: 437.3 MB). Free memory was 198.9 MB in the beginning and 613.8 MB in the end (delta: -414.9 MB). Peak memory consumption was 554.5 MB. Max. memory is 7.1 GB. [2020-09-04 12:32:43,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.06 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.6 MB in the beginning and 173.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.62 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1096.29 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 169.0 MB in the beginning and 198.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39495.03 ms. Allocated memory was 238.0 MB in the beginning and 675.3 MB in the end (delta: 437.3 MB). Free memory was 198.9 MB in the beginning and 613.8 MB in the end (delta: -414.9 MB). Peak memory consumption was 554.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 249]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L255] int methAndRunningLastTime ; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; VAL [\old(cleanupTimeShifts)=176, \old(head)=177, \old(head)=165, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=144, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L129] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L320] int retValue_acc ; [L323] retValue_acc = 1 [L324] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L130] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L134] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L135] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L113] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L113] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L708] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L714] tmp = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L718] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L718] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L728] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L181] COND FALSE !(\read(methaneLevelCritical)) [L184] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L728] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=0, waterLevel=2] [L751] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L772] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L779] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L781] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L801] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L804] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L904] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L231] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L904] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L904] tmp = isHighWaterSensorDry() [L906] COND FALSE !(\read(tmp)) [L909] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L806] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] tmp = isHighWaterLevel() [L808] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L810] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L810] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L781] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L265] int tmp ; [L266] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L270] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L270] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L274] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L274] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L277] COND FALSE !(\read(methAndRunningLastTime)) [L282] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L787] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L751] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=0, waterLevel=2] [L706] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=0, waterLevel=2] [L708] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=0, waterLevel=2] [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=-1, tmp___2=0, waterLevel=2] [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=-2, tmp___2=0, waterLevel=2] [L751] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L772] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L774] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L779] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L801] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L804] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L819] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L787] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L265] int tmp ; [L266] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L270] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L270] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L274] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L274] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L277] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L279] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L249] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.1s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1103 SDtfs, 3134 SDslu, 1473 SDs, 0 SdLazy, 6133 SolverSat, 2322 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 288 SyntacticMatches, 3 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=11, 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, 11 MinimizatonAttempts, 964 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 937 NumberOfCodeBlocks, 937 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 795 ConstructedInterpolants, 0 QuantifiedInterpolants, 249077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...