/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_FUNCTIONS --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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:51:51,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:51:51,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:51:51,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:51:51,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:51:51,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:51:51,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:51:51,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:51:51,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:51:51,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:51:51,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:51:51,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:51:51,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:51:51,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:51:51,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:51:51,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:51:51,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:51:51,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:51:51,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:51:51,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:51:51,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:51:51,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:51:51,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:51:51,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:51:51,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:51:51,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:51:51,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:51:51,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:51:51,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:51:51,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:51:51,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:51:51,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:51:51,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:51:51,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:51:51,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:51:51,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:51:51,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:51:51,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:51:51,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:51:51,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:51:51,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:51:51,236 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 12:51:51,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:51:51,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:51:51,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:51:51,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:51:51,273 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:51:51,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:51:51,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:51:51,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:51:51,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:51:51,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:51:51,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:51:51,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:51:51,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:51:51,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:51:51,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:51:51,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:51:51,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:51:51,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:51:51,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:51:51,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:51:51,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:51:51,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:51:51,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:51:51,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:51:51,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:51:51,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:51:51,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:51,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:51:51,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:51:51,281 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_FUNCTIONS 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 12:51:51,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:51:51,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:51:51,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:51:51,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:51:51,611 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:51:51,611 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-07-21 12:51:51,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e6f51f0/1a12010e33164a8abb7540b12f4f3f33/FLAG113eee08e [2020-07-21 12:51:52,149 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:51:52,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-07-21 12:51:52,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e6f51f0/1a12010e33164a8abb7540b12f4f3f33/FLAG113eee08e [2020-07-21 12:51:52,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e6f51f0/1a12010e33164a8abb7540b12f4f3f33 [2020-07-21 12:51:52,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:51:52,533 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:51:52,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:52,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:51:52,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:51:52,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:52" (1/1) ... [2020-07-21 12:51:52,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fb56e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:52, skipping insertion in model container [2020-07-21 12:51:52,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:52" (1/1) ... [2020-07-21 12:51:52,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:51:52,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:51:52,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:53,013 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:51:53,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:53,121 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:51:53,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53 WrapperNode [2020-07-21 12:51:53,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:53,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:51:53,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:51:53,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:51:53,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (1/1) ... [2020-07-21 12:51:53,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:51:53,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:51:53,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:51:53,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:51:53,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (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 12:51:53,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:51:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:51:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:51:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:51:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:51:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:51:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:51:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:51:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:51:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:51:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:51:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:51:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:51:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:51:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:51:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:51:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:51:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:51:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:51:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:51:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:51:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:51:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:51:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:51:53,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:51:53,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:51:53,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:51:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:51:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:51:53,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:51:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:51:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:51:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:51:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:51:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:51:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:51:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:51:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:51:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:51:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:51:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:51:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:51:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:51:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:51:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:51:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:51:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:51:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:51:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:51:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:51:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:51:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:51:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:51:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:51:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:51:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:51:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:51:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:51:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:51:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:51:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:51:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:51:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:51:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:51:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:51:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:51:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:51:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:51:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:51:54,410 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:51:54,411 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:51:54,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:54 BoogieIcfgContainer [2020-07-21 12:51:54,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:51:54,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:51:54,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:51:54,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:51:54,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:51:52" (1/3) ... [2020-07-21 12:51:54,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a48194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:54, skipping insertion in model container [2020-07-21 12:51:54,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:53" (2/3) ... [2020-07-21 12:51:54,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a48194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:54, skipping insertion in model container [2020-07-21 12:51:54,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:54" (3/3) ... [2020-07-21 12:51:54,424 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-07-21 12:51:54,434 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:51:54,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:51:54,456 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:51:54,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:51:54,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:51:54,480 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:51:54,480 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:51:54,480 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:51:54,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:51:54,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:51:54,481 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:51:54,504 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-07-21 12:51:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:51:54,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:54,518 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 12:51:54,519 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:54,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:54,523 INFO L82 PathProgramCache]: Analyzing trace with hash -438635737, now seen corresponding path program 1 times [2020-07-21 12:51:54,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:54,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570936752] [2020-07-21 12:51:54,530 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 12:51:54,899 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:54,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:54,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:51:54,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:54,954 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 12:51:54,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:54,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570936752] [2020-07-21 12:51:54,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:54,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:51:54,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761367013] [2020-07-21 12:51:54,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:51:54,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:54,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:51:54,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:51:54,988 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 2 states. [2020-07-21 12:51:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:55,031 INFO L93 Difference]: Finished difference Result 174 states and 219 transitions. [2020-07-21 12:51:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:51:55,033 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 12:51:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:55,046 INFO L225 Difference]: With dead ends: 174 [2020-07-21 12:51:55,047 INFO L226 Difference]: Without dead ends: 87 [2020-07-21 12:51:55,052 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 12:51:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-21 12:51:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-07-21 12:51:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-21 12:51:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2020-07-21 12:51:55,116 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 52 [2020-07-21 12:51:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:55,117 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2020-07-21 12:51:55,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:51:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2020-07-21 12:51:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 12:51:55,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:55,125 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 12:51:55,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:55,344 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:55,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:55,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1274777231, now seen corresponding path program 1 times [2020-07-21 12:51:55,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:55,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276738777] [2020-07-21 12:51:55,347 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 12:51:55,663 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:55,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:55,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:55,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:55,730 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 12:51:55,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:55,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276738777] [2020-07-21 12:51:55,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:55,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:55,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782941442] [2020-07-21 12:51:55,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:55,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:55,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:55,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:55,737 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand 3 states. [2020-07-21 12:51:55,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:55,772 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2020-07-21 12:51:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:55,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 12:51:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:55,778 INFO L225 Difference]: With dead ends: 150 [2020-07-21 12:51:55,779 INFO L226 Difference]: Without dead ends: 87 [2020-07-21 12:51:55,782 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 12:51:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-21 12:51:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-07-21 12:51:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-21 12:51:55,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2020-07-21 12:51:55,808 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 53 [2020-07-21 12:51:55,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:55,809 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2020-07-21 12:51:55,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2020-07-21 12:51:55,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 12:51:55,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:55,816 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] [2020-07-21 12:51:56,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:56,017 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:56,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:56,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1967968877, now seen corresponding path program 1 times [2020-07-21 12:51:56,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:56,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945895645] [2020-07-21 12:51:56,019 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 12:51:56,354 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:56,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:56,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:56,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:56,387 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 12:51:56,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:56,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945895645] [2020-07-21 12:51:56,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:56,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:56,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41210834] [2020-07-21 12:51:56,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:56,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:56,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:56,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:56,392 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand 3 states. [2020-07-21 12:51:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:56,414 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2020-07-21 12:51:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:56,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 12:51:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:56,416 INFO L225 Difference]: With dead ends: 123 [2020-07-21 12:51:56,417 INFO L226 Difference]: Without dead ends: 78 [2020-07-21 12:51:56,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 12:51:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-21 12:51:56,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-21 12:51:56,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-21 12:51:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-07-21 12:51:56,432 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 56 [2020-07-21 12:51:56,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:56,433 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-07-21 12:51:56,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-07-21 12:51:56,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 12:51:56,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:56,436 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] [2020-07-21 12:51:56,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:56,650 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:56,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1699431063, now seen corresponding path program 1 times [2020-07-21 12:51:56,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:56,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251747411] [2020-07-21 12:51:56,652 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 12:51:56,949 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:56,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:56,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:51:56,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:57,011 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 12:51:57,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:57,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251747411] [2020-07-21 12:51:57,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:57,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:57,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884784511] [2020-07-21 12:51:57,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:57,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:57,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:57,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:57,013 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 6 states. [2020-07-21 12:51:57,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:57,217 INFO L93 Difference]: Finished difference Result 177 states and 214 transitions. [2020-07-21 12:51:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:57,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-07-21 12:51:57,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:57,222 INFO L225 Difference]: With dead ends: 177 [2020-07-21 12:51:57,222 INFO L226 Difference]: Without dead ends: 123 [2020-07-21 12:51:57,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 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 12:51:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-21 12:51:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2020-07-21 12:51:57,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-21 12:51:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2020-07-21 12:51:57,241 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 60 [2020-07-21 12:51:57,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:57,242 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2020-07-21 12:51:57,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2020-07-21 12:51:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 12:51:57,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:57,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:57,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:57,458 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:57,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:57,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2045663983, now seen corresponding path program 1 times [2020-07-21 12:51:57,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:57,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497478361] [2020-07-21 12:51:57,459 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 12:51:57,831 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:57,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:51:57,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:51:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:51:57,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:51:58,128 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:51:58,128 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:51:58,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:58,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:51:58 BoogieIcfgContainer [2020-07-21 12:51:58,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:51:58,512 INFO L168 Benchmark]: Toolchain (without parser) took 5975.07 ms. Allocated memory was 138.9 MB in the beginning and 278.4 MB in the end (delta: 139.5 MB). Free memory was 102.4 MB in the beginning and 236.1 MB in the end (delta: -133.7 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,513 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.99 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 175.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,515 INFO L168 Benchmark]: Boogie Preprocessor took 82.66 ms. Allocated memory is still 203.9 MB. Free memory was 175.2 MB in the beginning and 170.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,516 INFO L168 Benchmark]: RCFGBuilder took 1210.79 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 170.7 MB in the beginning and 206.1 MB in the end (delta: -35.3 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,517 INFO L168 Benchmark]: TraceAbstraction took 4088.32 ms. Allocated memory was 236.5 MB in the beginning and 278.4 MB in the end (delta: 41.9 MB). Free memory was 204.6 MB in the beginning and 236.1 MB in the end (delta: -31.4 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 587.99 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 175.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.66 ms. Allocated memory is still 203.9 MB. Free memory was 175.2 MB in the beginning and 170.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1210.79 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 170.7 MB in the beginning and 206.1 MB in the end (delta: -35.3 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4088.32 ms. Allocated memory was 236.5 MB in the beginning and 278.4 MB in the end (delta: 41.9 MB). Free memory was 204.6 MB in the beginning and 236.1 MB in the end (delta: -31.4 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=31, \old(head)=70, \old(head)=92, \old(methaneLevelCritical)=66, \old(pumpRunning)=72, \old(systemActive)=74, \old(waterLevel)=27, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; [L381] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L385] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L386] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L387] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L387] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L391] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L392] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L169] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L171] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L181] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L181] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-1, waterLevel=2] [L212] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L56] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L65] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L71] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L271] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L277] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L277] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L281] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L281] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L287] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L302] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 197 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 393 SDtfs, 110 SDslu, 357 SDs, 0 SdLazy, 61 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, 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, 1.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 21419 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2558 ConjunctsInSsa, 19 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...