/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 00:58:16,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 00:58:16,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 00:58:16,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 00:58:16,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 00:58:16,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 00:58:16,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 00:58:16,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 00:58:16,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 00:58:16,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 00:58:16,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 00:58:16,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 00:58:16,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 00:58:16,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 00:58:16,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 00:58:16,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 00:58:16,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 00:58:16,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 00:58:16,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 00:58:16,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 00:58:17,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 00:58:17,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 00:58:17,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 00:58:17,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 00:58:17,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 00:58:17,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 00:58:17,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 00:58:17,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 00:58:17,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 00:58:17,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 00:58:17,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 00:58:17,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 00:58:17,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 00:58:17,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 00:58:17,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 00:58:17,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 00:58:17,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 00:58:17,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 00:58:17,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 00:58:17,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 00:58:17,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 00:58:17,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 00:58:17,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 00:58:17,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 00:58:17,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 00:58:17,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 00:58:17,034 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 00:58:17,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 00:58:17,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 00:58:17,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 00:58:17,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 00:58:17,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 00:58:17,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 00:58:17,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 00:58:17,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 00:58:17,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 00:58:17,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 00:58:17,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 00:58:17,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 00:58:17,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 00:58:17,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 00:58:17,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 00:58:17,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 00:58:17,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:58:17,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 00:58:17,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 00:58:17,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 00:58:17,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 00:58:17,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 00:58:17,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 00:58:17,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 00:58:17,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 00:58:17,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 00:58:17,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 00:58:17,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 00:58:17,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 00:58:17,357 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 00:58:17,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-07-20 00:58:17,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4928e3b/ed1512325ab74fefab637d03e3fb26b1/FLAG1d595d4e9 [2020-07-20 00:58:18,002 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 00:58:18,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-07-20 00:58:18,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4928e3b/ed1512325ab74fefab637d03e3fb26b1/FLAG1d595d4e9 [2020-07-20 00:58:18,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4928e3b/ed1512325ab74fefab637d03e3fb26b1 [2020-07-20 00:58:18,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 00:58:18,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 00:58:18,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 00:58:18,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 00:58:18,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 00:58:18,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:18,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9868b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18, skipping insertion in model container [2020-07-20 00:58:18,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:18,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 00:58:18,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 00:58:18,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:58:18,836 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 00:58:18,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:58:18,983 INFO L208 MainTranslator]: Completed translation [2020-07-20 00:58:18,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18 WrapperNode [2020-07-20 00:58:18,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 00:58:18,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 00:58:18,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 00:58:18,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 00:58:18,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:18,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:19,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:19,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:19,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:19,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:19,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... [2020-07-20 00:58:19,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 00:58:19,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 00:58:19,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 00:58:19,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 00:58:19,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:58:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 00:58:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 00:58:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 00:58:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 00:58:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 00:58:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 00:58:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 00:58:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 00:58:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 00:58:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 00:58:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 00:58:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 00:58:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 00:58:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 00:58:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 00:58:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 00:58:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 00:58:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 00:58:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 00:58:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 00:58:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 00:58:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 00:58:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 00:58:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 00:58:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 00:58:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 00:58:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 00:58:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 00:58:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 00:58:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 00:58:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 00:58:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 00:58:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 00:58:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 00:58:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 00:58:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:58:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 00:58:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 00:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 00:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 00:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 00:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 00:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 00:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 00:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 00:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 00:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 00:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 00:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 00:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 00:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 00:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 00:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 00:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 00:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 00:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 00:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 00:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 00:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 00:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 00:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 00:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 00:58:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 00:58:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 00:58:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 00:58:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 00:58:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 00:58:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 00:58:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 00:58:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 00:58:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 00:58:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 00:58:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 00:58:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 00:58:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 00:58:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 00:58:20,208 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 00:58:20,209 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 00:58:20,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:58:20 BoogieIcfgContainer [2020-07-20 00:58:20,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 00:58:20,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 00:58:20,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 00:58:20,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 00:58:20,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:58:18" (1/3) ... [2020-07-20 00:58:20,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3821ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:58:20, skipping insertion in model container [2020-07-20 00:58:20,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:18" (2/3) ... [2020-07-20 00:58:20,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3821ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:58:20, skipping insertion in model container [2020-07-20 00:58:20,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:58:20" (3/3) ... [2020-07-20 00:58:20,226 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-07-20 00:58:20,236 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 00:58:20,245 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 00:58:20,260 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 00:58:20,291 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 00:58:20,292 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 00:58:20,292 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 00:58:20,292 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 00:58:20,293 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 00:58:20,293 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 00:58:20,293 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 00:58:20,293 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 00:58:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-07-20 00:58:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 00:58:20,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:20,324 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] [2020-07-20 00:58:20,325 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:20,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:20,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1057158692, now seen corresponding path program 1 times [2020-07-20 00:58:20,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:20,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184668318] [2020-07-20 00:58:20,340 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@77abad89 [2020-07-20 00:58:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,127 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:21,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184668318] [2020-07-20 00:58:21,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:21,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 00:58:21,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427517348] [2020-07-20 00:58:21,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 00:58:21,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:21,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 00:58:21,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:58:21,225 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-07-20 00:58:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:22,300 INFO L93 Difference]: Finished difference Result 258 states and 341 transitions. [2020-07-20 00:58:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 00:58:22,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 00:58:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:22,318 INFO L225 Difference]: With dead ends: 258 [2020-07-20 00:58:22,318 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 00:58:22,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:58:22,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 00:58:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2020-07-20 00:58:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-20 00:58:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-07-20 00:58:22,411 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 52 [2020-07-20 00:58:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:22,412 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-07-20 00:58:22,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 00:58:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-07-20 00:58:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 00:58:22,416 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:22,416 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] [2020-07-20 00:58:22,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 00:58:22,417 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:22,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:22,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1710283751, now seen corresponding path program 1 times [2020-07-20 00:58:22,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:22,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734490796] [2020-07-20 00:58:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@77abad89 [2020-07-20 00:58:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,755 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:22,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:22,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734490796] [2020-07-20 00:58:22,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:22,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 00:58:22,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846830400] [2020-07-20 00:58:22,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 00:58:22,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:22,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 00:58:22,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:58:22,803 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 4 states. [2020-07-20 00:58:23,255 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:23,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:23,926 INFO L93 Difference]: Finished difference Result 187 states and 228 transitions. [2020-07-20 00:58:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 00:58:23,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-20 00:58:23,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:23,930 INFO L225 Difference]: With dead ends: 187 [2020-07-20 00:58:23,930 INFO L226 Difference]: Without dead ends: 124 [2020-07-20 00:58:23,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 00:58:23,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-20 00:58:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2020-07-20 00:58:23,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-20 00:58:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-20 00:58:23,966 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 53 [2020-07-20 00:58:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:23,966 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-20 00:58:23,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 00:58:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-20 00:58:23,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 00:58:23,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:23,969 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] [2020-07-20 00:58:23,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 00:58:23,969 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:23,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:23,970 INFO L82 PathProgramCache]: Analyzing trace with hash -830709307, now seen corresponding path program 1 times [2020-07-20 00:58:23,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:23,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640112155] [2020-07-20 00:58:23,970 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@77abad89 [2020-07-20 00:58:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,280 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:24,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640112155] [2020-07-20 00:58:24,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:24,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:58:24,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622304585] [2020-07-20 00:58:24,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:24,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:24,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:24,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:58:24,371 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 8 states. [2020-07-20 00:58:24,799 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:25,096 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:58:25,349 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:25,620 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:26,605 INFO L93 Difference]: Finished difference Result 200 states and 246 transitions. [2020-07-20 00:58:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 00:58:26,606 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-20 00:58:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:26,609 INFO L225 Difference]: With dead ends: 200 [2020-07-20 00:58:26,609 INFO L226 Difference]: Without dead ends: 124 [2020-07-20 00:58:26,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-20 00:58:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-20 00:58:26,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2020-07-20 00:58:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-20 00:58:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-07-20 00:58:26,642 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 58 [2020-07-20 00:58:26,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:26,642 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-07-20 00:58:26,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:26,642 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-07-20 00:58:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 00:58:26,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:26,644 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] [2020-07-20 00:58:26,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 00:58:26,645 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1834721556, now seen corresponding path program 1 times [2020-07-20 00:58:26,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:26,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46811840] [2020-07-20 00:58:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@77abad89 [2020-07-20 00:58:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,969 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:27,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46811840] [2020-07-20 00:58:27,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:27,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:58:27,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760659212] [2020-07-20 00:58:27,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:27,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:27,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:27,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:58:27,109 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 8 states. [2020-07-20 00:58:27,501 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:28,876 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:29,210 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:29,445 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:29,802 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:30,089 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2020-07-20 00:58:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 00:58:30,091 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-07-20 00:58:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:30,095 INFO L225 Difference]: With dead ends: 299 [2020-07-20 00:58:30,095 INFO L226 Difference]: Without dead ends: 223 [2020-07-20 00:58:30,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-20 00:58:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-07-20 00:58:30,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 174. [2020-07-20 00:58:30,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-20 00:58:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2020-07-20 00:58:30,153 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 66 [2020-07-20 00:58:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:30,154 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2020-07-20 00:58:30,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2020-07-20 00:58:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-20 00:58:30,156 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:30,156 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] [2020-07-20 00:58:30,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 00:58:30,157 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:30,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1027907532, now seen corresponding path program 1 times [2020-07-20 00:58:30,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:30,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567053607] [2020-07-20 00:58:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@77abad89 [2020-07-20 00:58:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,442 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:30,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567053607] [2020-07-20 00:58:30,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:30,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 00:58:30,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509346714] [2020-07-20 00:58:30,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 00:58:30,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:30,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 00:58:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 00:58:30,519 INFO L87 Difference]: Start difference. First operand 174 states and 205 transitions. Second operand 6 states. [2020-07-20 00:58:30,884 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:31,431 INFO L93 Difference]: Finished difference Result 296 states and 363 transitions. [2020-07-20 00:58:31,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 00:58:31,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2020-07-20 00:58:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:31,434 INFO L225 Difference]: With dead ends: 296 [2020-07-20 00:58:31,434 INFO L226 Difference]: Without dead ends: 146 [2020-07-20 00:58:31,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 00:58:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-20 00:58:31,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 133. [2020-07-20 00:58:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 00:58:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 148 transitions. [2020-07-20 00:58:31,468 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 148 transitions. Word has length 74 [2020-07-20 00:58:31,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:31,469 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 148 transitions. [2020-07-20 00:58:31,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 00:58:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2020-07-20 00:58:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-20 00:58:31,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:31,470 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] [2020-07-20 00:58:31,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 00:58:31,471 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:31,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1882239654, now seen corresponding path program 1 times [2020-07-20 00:58:31,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:31,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759358313] [2020-07-20 00:58:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@77abad89 [2020-07-20 00:58:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:58:31,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:58:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:58:31,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:58:31,730 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 00:58:31,730 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 00:58:31,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 00:58:31,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:58:31 BoogieIcfgContainer [2020-07-20 00:58:31,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 00:58:31,850 INFO L168 Benchmark]: Toolchain (without parser) took 13538.22 ms. Allocated memory was 145.2 MB in the beginning and 450.9 MB in the end (delta: 305.7 MB). Free memory was 102.1 MB in the beginning and 374.7 MB in the end (delta: -272.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:31,851 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 00:58:31,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.44 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 173.2 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:31,853 INFO L168 Benchmark]: Boogie Preprocessor took 89.95 ms. Allocated memory is still 202.4 MB. Free memory was 172.5 MB in the beginning and 168.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:31,854 INFO L168 Benchmark]: RCFGBuilder took 1142.71 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 203.4 MB in the end (delta: -35.0 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:31,855 INFO L168 Benchmark]: TraceAbstraction took 11629.54 ms. Allocated memory was 235.4 MB in the beginning and 450.9 MB in the end (delta: 215.5 MB). Free memory was 201.9 MB in the beginning and 374.7 MB in the end (delta: -172.8 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:31,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.44 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 173.2 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.95 ms. Allocated memory is still 202.4 MB. Free memory was 172.5 MB in the beginning and 168.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1142.71 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 203.4 MB in the end (delta: -35.0 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11629.54 ms. Allocated memory was 235.4 MB in the beginning and 450.9 MB in the end (delta: 215.5 MB). Free memory was 201.9 MB in the beginning and 374.7 MB in the end (delta: -172.8 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L96] int pumpRunning = 0; [L97] int systemActive = 1; [L309] int waterLevel = 1; [L310] int methaneLevelCritical = 0; [L389] int cleanupTimeShifts = 4; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=169, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=145, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] int retValue_acc ; [L463] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L469] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L469] tmp = valid_product() [L471] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L473] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L474] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L251] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L253] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L259] tmp = __VERIFIER_nondet_int() [L261] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L263] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L327] COND TRUE waterLevel < 2 [L328] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp___2)) [L287] tmp___1 = __VERIFIER_nondet_int() [L289] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L296] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L104] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L111] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L136] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L151] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L119] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] int tmp ; [L853] int tmp___0 ; [L854] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L858] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L348] int retValue_acc ; [L351] retValue_acc = methaneLevelCritical [L352] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L858] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L858] tmp = isMethaneLevelCritical() [L860] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L864] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L380] int retValue_acc ; [L383] retValue_acc = waterLevel [L384] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L864] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L864] tmp___0 = getWaterLevel() [L866] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L868] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] int retValue_acc ; [L188] retValue_acc = pumpRunning [L189] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L868] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L868] tmp___1 = isPumpRunning() [L870] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L874] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 444 SDtfs, 658 SDslu, 237 SDs, 0 SdLazy, 1339 SolverSat, 452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 141 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 373 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 86194 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...