/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:41:17,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:41:17,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:41:17,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:41:17,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:41:17,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:41:17,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:41:17,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:41:17,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:41:17,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:41:17,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:41:17,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:41:17,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:41:17,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:41:17,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:41:17,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:41:17,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:41:17,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:41:17,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:41:17,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:41:17,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:41:17,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:41:17,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:41:17,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:41:17,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:41:17,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:41:17,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:41:17,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:41:17,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:41:17,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:41:17,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:41:17,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:41:17,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:41:17,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:41:17,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:41:17,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:41:17,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:41:17,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:41:17,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:41:17,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:41:17,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:41:17,190 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 [2020-07-21 15:41:17,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:41:17,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:41:17,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:41:17,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:41:17,211 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:41:17,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:41:17,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:41:17,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:41:17,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:41:17,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:41:17,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:41:17,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:41:17,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:41:17,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:41:17,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:41:17,215 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:41:17,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:41:17,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:41:17,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:41:17,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:41:17,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:41:17,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:41:17,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:41:17,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:41:17,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:41:17,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:41:17,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:17,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:41:17,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:41:17,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC 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 -> 2 [2020-07-21 15:41:17,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:41:17,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:41:17,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:41:17,522 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:41:17,522 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:41:17,523 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-07-21 15:41:17,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1ed89c4b/bd05cbb24f5a43369fdda311d4edfa8f/FLAG19ff711f9 [2020-07-21 15:41:18,091 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:41:18,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-07-21 15:41:18,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1ed89c4b/bd05cbb24f5a43369fdda311d4edfa8f/FLAG19ff711f9 [2020-07-21 15:41:18,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1ed89c4b/bd05cbb24f5a43369fdda311d4edfa8f [2020-07-21 15:41:18,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:41:18,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:41:18,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:18,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:41:18,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:41:18,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:18" (1/1) ... [2020-07-21 15:41:18,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb6ae03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:18, skipping insertion in model container [2020-07-21 15:41:18,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:18" (1/1) ... [2020-07-21 15:41:18,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:41:18,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:41:18,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:18,949 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:41:19,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:19,078 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:41:19,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19 WrapperNode [2020-07-21 15:41:19,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:19,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:41:19,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:41:19,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:41:19,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (1/1) ... [2020-07-21 15:41:19,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:41:19,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:41:19,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:41:19,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:41:19,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (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 [2020-07-21 15:41:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:41:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:41:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:41:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:41:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:41:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:41:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:41:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:41:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:41:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:41:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:41:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:41:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:41:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 15:41:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:41:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:41:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:41:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:41:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:41:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:41:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:41:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:41:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:41:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:41:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:41:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 15:41:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 15:41:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:41:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:41:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:41:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:41:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:41:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:41:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:41:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:41:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:41:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:41:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:41:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:41:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:41:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:41:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:41:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:41:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:41:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:41:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:41:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:41:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 15:41:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:41:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:41:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:41:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:41:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:41:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:41:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:41:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:41:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:41:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 15:41:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:41:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:41:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:41:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:41:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:41:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:41:20,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:41:20,507 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:41:20,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:20 BoogieIcfgContainer [2020-07-21 15:41:20,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:41:20,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:41:20,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:41:20,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:41:20,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:41:18" (1/3) ... [2020-07-21 15:41:20,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17242042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:20, skipping insertion in model container [2020-07-21 15:41:20,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:19" (2/3) ... [2020-07-21 15:41:20,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17242042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:20, skipping insertion in model container [2020-07-21 15:41:20,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:20" (3/3) ... [2020-07-21 15:41:20,523 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-07-21 15:41:20,534 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:41:20,542 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:41:20,557 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:41:20,583 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:41:20,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:41:20,583 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:41:20,584 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:41:20,584 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:41:20,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:41:20,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:41:20,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:41:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-07-21 15:41:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:41:20,618 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:20,620 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] [2020-07-21 15:41:20,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:20,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:20,627 INFO L82 PathProgramCache]: Analyzing trace with hash 144675927, now seen corresponding path program 1 times [2020-07-21 15:41:20,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:20,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051285083] [2020-07-21 15:41:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:21,007 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:21,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:21,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:41:21,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:21,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:21,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051285083] [2020-07-21 15:41:21,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:21,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:41:21,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187440044] [2020-07-21 15:41:21,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:41:21,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:21,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:41:21,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:21,093 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2020-07-21 15:41:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:21,140 INFO L93 Difference]: Finished difference Result 228 states and 281 transitions. [2020-07-21 15:41:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:41:21,142 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 15:41:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:21,157 INFO L225 Difference]: With dead ends: 228 [2020-07-21 15:41:21,157 INFO L226 Difference]: Without dead ends: 114 [2020-07-21 15:41:21,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:21,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-21 15:41:21,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-07-21 15:41:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-21 15:41:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-07-21 15:41:21,228 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2020-07-21 15:41:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:21,229 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-07-21 15:41:21,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:41:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-07-21 15:41:21,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 15:41:21,233 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:21,233 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] [2020-07-21 15:41:21,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:21,448 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:21,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:21,449 INFO L82 PathProgramCache]: Analyzing trace with hash -274604967, now seen corresponding path program 1 times [2020-07-21 15:41:21,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:21,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16720116] [2020-07-21 15:41:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:21,843 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:21,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:21,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:41:21,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:21,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:21,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16720116] [2020-07-21 15:41:21,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:21,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:21,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429373904] [2020-07-21 15:41:21,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:21,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:21,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:21,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:21,909 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 3 states. [2020-07-21 15:41:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:21,937 INFO L93 Difference]: Finished difference Result 173 states and 199 transitions. [2020-07-21 15:41:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:21,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 15:41:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:21,940 INFO L225 Difference]: With dead ends: 173 [2020-07-21 15:41:21,940 INFO L226 Difference]: Without dead ends: 105 [2020-07-21 15:41:21,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:21,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-07-21 15:41:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-07-21 15:41:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-21 15:41:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-07-21 15:41:21,954 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 53 [2020-07-21 15:41:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:21,955 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-07-21 15:41:21,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:21,955 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-07-21 15:41:21,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 15:41:21,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:21,958 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] [2020-07-21 15:41:22,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:22,172 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:22,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:22,172 INFO L82 PathProgramCache]: Analyzing trace with hash 245025236, now seen corresponding path program 1 times [2020-07-21 15:41:22,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:22,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815094233] [2020-07-21 15:41:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:22,460 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:22,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:22,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 15:41:22,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:22,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:22,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815094233] [2020-07-21 15:41:22,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:22,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:22,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602201890] [2020-07-21 15:41:22,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:22,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:22,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:22,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:22,505 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 3 states. [2020-07-21 15:41:22,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:22,536 INFO L93 Difference]: Finished difference Result 186 states and 217 transitions. [2020-07-21 15:41:22,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:22,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 15:41:22,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:22,542 INFO L225 Difference]: With dead ends: 186 [2020-07-21 15:41:22,543 INFO L226 Difference]: Without dead ends: 105 [2020-07-21 15:41:22,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:22,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-07-21 15:41:22,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-07-21 15:41:22,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-21 15:41:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-07-21 15:41:22,571 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 58 [2020-07-21 15:41:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:22,571 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-07-21 15:41:22,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-07-21 15:41:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-21 15:41:22,580 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:22,580 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] [2020-07-21 15:41:22,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:22,796 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:22,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1490172925, now seen corresponding path program 1 times [2020-07-21 15:41:22,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:22,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294226042] [2020-07-21 15:41:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:23,062 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:23,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:23,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:41:23,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:23,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:23,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294226042] [2020-07-21 15:41:23,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:23,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:23,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998530979] [2020-07-21 15:41:23,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:23,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:23,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:23,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:23,118 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 6 states. [2020-07-21 15:41:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:23,328 INFO L93 Difference]: Finished difference Result 258 states and 307 transitions. [2020-07-21 15:41:23,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:23,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-07-21 15:41:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:23,333 INFO L225 Difference]: With dead ends: 258 [2020-07-21 15:41:23,333 INFO L226 Difference]: Without dead ends: 177 [2020-07-21 15:41:23,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:23,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-21 15:41:23,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2020-07-21 15:41:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-07-21 15:41:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 204 transitions. [2020-07-21 15:41:23,354 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 204 transitions. Word has length 66 [2020-07-21 15:41:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:23,355 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 204 transitions. [2020-07-21 15:41:23,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 204 transitions. [2020-07-21 15:41:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-21 15:41:23,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:23,357 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] [2020-07-21 15:41:23,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:23,571 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:23,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:23,571 INFO L82 PathProgramCache]: Analyzing trace with hash 2126179389, now seen corresponding path program 1 times [2020-07-21 15:41:23,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:23,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074113044] [2020-07-21 15:41:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:23,948 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:23,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 15:41:23,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:41:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 15:41:24,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:41:24,272 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 15:41:24,273 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 15:41:24,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:24,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:41:24 BoogieIcfgContainer [2020-07-21 15:41:24,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:41:24,698 INFO L168 Benchmark]: Toolchain (without parser) took 6298.62 ms. Allocated memory was 146.3 MB in the beginning and 283.6 MB in the end (delta: 137.4 MB). Free memory was 103.2 MB in the beginning and 202.1 MB in the end (delta: -99.0 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:24,700 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:41:24,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.21 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.7 MB in the beginning and 172.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:24,702 INFO L168 Benchmark]: Boogie Preprocessor took 122.89 ms. Allocated memory is still 204.5 MB. Free memory was 172.4 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. [2020-07-21 15:41:24,702 INFO L168 Benchmark]: RCFGBuilder took 1309.91 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 168.4 MB in the beginning and 195.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:24,704 INFO L168 Benchmark]: TraceAbstraction took 4179.98 ms. Allocated memory was 235.4 MB in the beginning and 283.6 MB in the end (delta: 48.2 MB). Free memory was 195.0 MB in the beginning and 202.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:24,713 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.21 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.7 MB in the beginning and 172.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.89 ms. Allocated memory is still 204.5 MB. Free memory was 172.4 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 1309.91 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 168.4 MB in the beginning and 195.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4179.98 ms. Allocated memory was 235.4 MB in the beginning and 283.6 MB in the end (delta: 48.2 MB). Free memory was 195.0 MB in the beginning and 202.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; VAL [\old(cleanupTimeShifts)=86, \old(head)=68, \old(head)=49, \old(methaneLevelCritical)=43, \old(pumpRunning)=88, \old(systemActive)=81, \old(waterLevel)=50, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] 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] [L779] 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] [L781] 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] [L787] tmp = __VERIFIER_nondet_int() [L789] 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] [L791] 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] [L167] COND TRUE waterLevel < 2 [L168] 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] [L791] 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] [L797] tmp___0 = __VERIFIER_nondet_int() [L799] 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] [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___2)) [L815] tmp___1 = __VERIFIER_nondet_int() [L817] 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] [L824] 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] [L616] 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] [L623] 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] [L625] 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] [L645] 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] [L648] 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] [L663] 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] [L625] 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] [L631] 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] [L873] int tmp ; [L874] int tmp___0 ; [L875] 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] [L879] 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] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] 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] [L879] 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] [L879] tmp = isMethaneLevelCritical() [L881] 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] [L885] 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] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] 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] [L885] 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] [L885] tmp___0 = getWaterLevel() [L887] 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] [L889] 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] [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] 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] [L889] 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] [L889] tmp___1 = isPumpRunning() [L891] 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] [L895] 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] [L910] __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 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 511 SDtfs, 148 SDslu, 536 SDs, 0 SdLazy, 81 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 24663 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2707 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...