/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:00:59,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:00:59,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:00:59,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:00:59,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:00:59,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:00:59,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:00:59,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:00:59,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:00:59,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:00:59,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:00:59,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:00:59,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:00:59,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:00:59,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:00:59,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:00:59,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:00:59,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:00:59,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:00:59,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:00:59,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:00:59,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:00:59,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:00:59,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:00:59,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:00:59,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:00:59,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:00:59,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:00:59,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:00:59,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:00:59,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:00:59,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:00:59,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:00:59,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:00:59,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:00:59,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:00:59,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:00:59,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:00:59,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:00:59,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:00:59,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:00:59,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:00:59,276 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:00:59,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:00:59,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:00:59,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:00:59,279 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:00:59,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:00:59,280 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:00:59,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:00:59,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:00:59,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:00:59,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:00:59,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:00:59,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:00:59,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:00:59,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:00:59,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:00:59,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:00:59,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:00:59,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:00:59,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:00:59,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:00:59,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:00:59,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:00:59,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:00:59,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:00:59,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:00:59,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:00:59,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:00:59,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:00:59,289 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 -> 4 [2020-07-20 13:00:59,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:00:59,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:00:59,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:00:59,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:00:59,591 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:00:59,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-20 13:00:59,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b176965b3/6dcc765da2ac453bbdc507c97a80a3b0/FLAG466f6a950 [2020-07-20 13:01:00,209 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:01:00,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-20 13:01:00,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b176965b3/6dcc765da2ac453bbdc507c97a80a3b0/FLAG466f6a950 [2020-07-20 13:01:00,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b176965b3/6dcc765da2ac453bbdc507c97a80a3b0 [2020-07-20 13:01:00,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:01:00,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:01:00,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:00,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:01:00,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:01:00,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:00" (1/1) ... [2020-07-20 13:01:00,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453f0c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:00, skipping insertion in model container [2020-07-20 13:01:00,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:00" (1/1) ... [2020-07-20 13:01:00,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:01:00,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:01:01,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:01,041 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:01:01,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:01,198 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:01:01,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01 WrapperNode [2020-07-20 13:01:01,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:01,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:01:01,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:01:01,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:01:01,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... [2020-07-20 13:01:01,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:01:01,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:01:01,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:01:01,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:01:01,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:01:01,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:01:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:01:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 13:01:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:01:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:01:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:01:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:01:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:01:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:01:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:01:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 13:01:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:01:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:01:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:01:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:01:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:01:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:01:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:01:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:01:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:01:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:01:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:01:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:01:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:01:01,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:01:01,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:01:01,412 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:01:01,412 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:01:01,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:01:01,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:01:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:01:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:01:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 13:01:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 13:01:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:01:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:01:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:01:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:01:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:01:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:01:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:01:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:01:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:01:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:01:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 13:01:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:01:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:01:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:01:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:01:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:01:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:01:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:01:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:01:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:01:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:01:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:01:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:01:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:01:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:01:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 13:01:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:01:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:01:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:01:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:01:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:01:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:01:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:01:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:01:02,566 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:01:02,566 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:01:02,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:02 BoogieIcfgContainer [2020-07-20 13:01:02,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:01:02,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:01:02,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:01:02,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:01:02,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:01:00" (1/3) ... [2020-07-20 13:01:02,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dba2a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:02, skipping insertion in model container [2020-07-20 13:01:02,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:01" (2/3) ... [2020-07-20 13:01:02,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dba2a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:02, skipping insertion in model container [2020-07-20 13:01:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:02" (3/3) ... [2020-07-20 13:01:02,581 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-07-20 13:01:02,592 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:01:02,601 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:01:02,615 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:01:02,638 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:01:02,638 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:01:02,639 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:01:02,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:01:02,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:01:02,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:01:02,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:01:02,640 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:01:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-07-20 13:01:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 13:01:02,674 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:02,675 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] [2020-07-20 13:01:02,675 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1040081704, now seen corresponding path program 1 times [2020-07-20 13:01:02,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:02,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255733761] [2020-07-20 13:01:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:03,219 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:03,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:03,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:01:03,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:03,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:03,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255733761] [2020-07-20 13:01:03,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:03,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:01:03,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751990718] [2020-07-20 13:01:03,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:01:03,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:03,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:01:03,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:03,292 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 2 states. [2020-07-20 13:01:03,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:03,335 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2020-07-20 13:01:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:01:03,337 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 13:01:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:03,351 INFO L225 Difference]: With dead ends: 264 [2020-07-20 13:01:03,351 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 13:01:03,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:03,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 13:01:03,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-20 13:01:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 13:01:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2020-07-20 13:01:03,411 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2020-07-20 13:01:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:03,412 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2020-07-20 13:01:03,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:01:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2020-07-20 13:01:03,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 13:01:03,416 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:03,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:03,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:03,626 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:03,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:03,627 INFO L82 PathProgramCache]: Analyzing trace with hash -849158610, now seen corresponding path program 1 times [2020-07-20 13:01:03,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:03,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002235486] [2020-07-20 13:01:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:04,128 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:04,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:04,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:01:04,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:04,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:04,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002235486] [2020-07-20 13:01:04,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:04,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:04,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284777691] [2020-07-20 13:01:04,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:04,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:04,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:04,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:04,201 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2020-07-20 13:01:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:04,242 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2020-07-20 13:01:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:04,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 13:01:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:04,249 INFO L225 Difference]: With dead ends: 209 [2020-07-20 13:01:04,249 INFO L226 Difference]: Without dead ends: 123 [2020-07-20 13:01:04,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:04,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-20 13:01:04,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-20 13:01:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-20 13:01:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2020-07-20 13:01:04,281 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2020-07-20 13:01:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:04,286 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2020-07-20 13:01:04,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2020-07-20 13:01:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:01:04,289 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:04,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:04,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:04,504 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:04,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:04,504 INFO L82 PathProgramCache]: Analyzing trace with hash 846018297, now seen corresponding path program 1 times [2020-07-20 13:01:04,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:04,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643237835] [2020-07-20 13:01:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:04,877 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:04,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:04,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:01:04,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:04,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:04,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643237835] [2020-07-20 13:01:04,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:04,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:04,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402427832] [2020-07-20 13:01:04,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:04,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:04,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:04,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:04,924 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 3 states. [2020-07-20 13:01:04,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:04,961 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2020-07-20 13:01:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:04,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:01:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:04,965 INFO L225 Difference]: With dead ends: 222 [2020-07-20 13:01:04,965 INFO L226 Difference]: Without dead ends: 123 [2020-07-20 13:01:04,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:04,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-20 13:01:04,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-20 13:01:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-20 13:01:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2020-07-20 13:01:04,992 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2020-07-20 13:01:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:04,993 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2020-07-20 13:01:04,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:04,993 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2020-07-20 13:01:04,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-20 13:01:04,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:04,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:05,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:05,199 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:05,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:05,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1478840967, now seen corresponding path program 1 times [2020-07-20 13:01:05,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:05,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177057422] [2020-07-20 13:01:05,202 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:05,497 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:05,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:05,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:01:05,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:05,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:05,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177057422] [2020-07-20 13:01:05,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:05,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:05,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393644144] [2020-07-20 13:01:05,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:05,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:05,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:05,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:05,556 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 6 states. [2020-07-20 13:01:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:06,140 INFO L93 Difference]: Finished difference Result 303 states and 365 transitions. [2020-07-20 13:01:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:06,141 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-07-20 13:01:06,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:06,146 INFO L225 Difference]: With dead ends: 303 [2020-07-20 13:01:06,147 INFO L226 Difference]: Without dead ends: 204 [2020-07-20 13:01:06,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:01:06,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-07-20 13:01:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 188. [2020-07-20 13:01:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-20 13:01:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 211 transitions. [2020-07-20 13:01:06,172 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 211 transitions. Word has length 65 [2020-07-20 13:01:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:06,173 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 211 transitions. [2020-07-20 13:01:06,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 211 transitions. [2020-07-20 13:01:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-20 13:01:06,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:06,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:06,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:06,392 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:06,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1284194314, now seen corresponding path program 1 times [2020-07-20 13:01:06,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:06,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188463535] [2020-07-20 13:01:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:06,778 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:06,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:06,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:01:06,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:06,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:06,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188463535] [2020-07-20 13:01:06,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:06,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:06,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076364908] [2020-07-20 13:01:06,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:06,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:06,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:06,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:06,834 INFO L87 Difference]: Start difference. First operand 188 states and 211 transitions. Second operand 6 states. [2020-07-20 13:01:07,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:07,099 INFO L93 Difference]: Finished difference Result 505 states and 587 transitions. [2020-07-20 13:01:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:07,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-07-20 13:01:07,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:07,108 INFO L225 Difference]: With dead ends: 505 [2020-07-20 13:01:07,110 INFO L226 Difference]: Without dead ends: 341 [2020-07-20 13:01:07,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-07-20 13:01:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2020-07-20 13:01:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-20 13:01:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 380 transitions. [2020-07-20 13:01:07,178 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 380 transitions. Word has length 79 [2020-07-20 13:01:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:07,179 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 380 transitions. [2020-07-20 13:01:07,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 380 transitions. [2020-07-20 13:01:07,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-20 13:01:07,181 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:07,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:07,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:07,397 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:07,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:07,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1377771002, now seen corresponding path program 1 times [2020-07-20 13:01:07,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:07,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022499323] [2020-07-20 13:01:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:07,774 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:07,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:07,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:07,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:07,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:07,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022499323] [2020-07-20 13:01:07,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:07,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:07,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813314092] [2020-07-20 13:01:07,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:07,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:07,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:07,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:07,828 INFO L87 Difference]: Start difference. First operand 337 states and 380 transitions. Second operand 6 states. [2020-07-20 13:01:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:08,066 INFO L93 Difference]: Finished difference Result 344 states and 388 transitions. [2020-07-20 13:01:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:08,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-07-20 13:01:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:08,074 INFO L225 Difference]: With dead ends: 344 [2020-07-20 13:01:08,074 INFO L226 Difference]: Without dead ends: 341 [2020-07-20 13:01:08,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:08,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-07-20 13:01:08,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2020-07-20 13:01:08,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-20 13:01:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 379 transitions. [2020-07-20 13:01:08,145 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 379 transitions. Word has length 83 [2020-07-20 13:01:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:08,146 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 379 transitions. [2020-07-20 13:01:08,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 379 transitions. [2020-07-20 13:01:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-20 13:01:08,148 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:08,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:08,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:08,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:08,362 INFO L82 PathProgramCache]: Analyzing trace with hash 453090503, now seen corresponding path program 1 times [2020-07-20 13:01:08,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:08,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944194499] [2020-07-20 13:01:08,363 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:08,778 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:08,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:08,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:08,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:08,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:08,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944194499] [2020-07-20 13:01:08,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:08,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:08,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886888794] [2020-07-20 13:01:08,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:08,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:08,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:08,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:08,837 INFO L87 Difference]: Start difference. First operand 337 states and 379 transitions. Second operand 6 states. [2020-07-20 13:01:08,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:08,892 INFO L93 Difference]: Finished difference Result 660 states and 752 transitions. [2020-07-20 13:01:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:01:08,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-07-20 13:01:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:08,895 INFO L225 Difference]: With dead ends: 660 [2020-07-20 13:01:08,896 INFO L226 Difference]: Without dead ends: 347 [2020-07-20 13:01:08,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:01:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-07-20 13:01:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2020-07-20 13:01:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-07-20 13:01:08,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 389 transitions. [2020-07-20 13:01:08,916 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 389 transitions. Word has length 84 [2020-07-20 13:01:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:08,917 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 389 transitions. [2020-07-20 13:01:08,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:08,917 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 389 transitions. [2020-07-20 13:01:08,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-20 13:01:08,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:08,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:09,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:09,134 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:09,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:09,135 INFO L82 PathProgramCache]: Analyzing trace with hash 475722757, now seen corresponding path program 1 times [2020-07-20 13:01:09,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:09,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948354928] [2020-07-20 13:01:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:09,574 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:09,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:09,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:01:09,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:09,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:09,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948354928] [2020-07-20 13:01:09,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:09,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:01:09,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054919069] [2020-07-20 13:01:09,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:01:09,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:09,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:01:09,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:09,613 INFO L87 Difference]: Start difference. First operand 347 states and 389 transitions. Second operand 5 states. [2020-07-20 13:01:09,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:09,639 INFO L93 Difference]: Finished difference Result 684 states and 784 transitions. [2020-07-20 13:01:09,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:01:09,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-07-20 13:01:09,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:09,642 INFO L225 Difference]: With dead ends: 684 [2020-07-20 13:01:09,642 INFO L226 Difference]: Without dead ends: 361 [2020-07-20 13:01:09,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-07-20 13:01:09,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 355. [2020-07-20 13:01:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-07-20 13:01:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 397 transitions. [2020-07-20 13:01:09,665 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 397 transitions. Word has length 84 [2020-07-20 13:01:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:09,687 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 397 transitions. [2020-07-20 13:01:09,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:01:09,688 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 397 transitions. [2020-07-20 13:01:09,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-20 13:01:09,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:09,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:09,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:09,890 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:09,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:09,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1501214756, now seen corresponding path program 1 times [2020-07-20 13:01:09,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:09,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40494772] [2020-07-20 13:01:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:10,274 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:10,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:10,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:01:10,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:10,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:10,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40494772] [2020-07-20 13:01:10,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:10,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:10,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419492753] [2020-07-20 13:01:10,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:10,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:10,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:10,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:10,306 INFO L87 Difference]: Start difference. First operand 355 states and 397 transitions. Second operand 3 states. [2020-07-20 13:01:10,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:10,353 INFO L93 Difference]: Finished difference Result 961 states and 1123 transitions. [2020-07-20 13:01:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:10,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-07-20 13:01:10,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:10,358 INFO L225 Difference]: With dead ends: 961 [2020-07-20 13:01:10,358 INFO L226 Difference]: Without dead ends: 630 [2020-07-20 13:01:10,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-07-20 13:01:10,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2020-07-20 13:01:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-07-20 13:01:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 720 transitions. [2020-07-20 13:01:10,399 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 720 transitions. Word has length 84 [2020-07-20 13:01:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:10,400 INFO L479 AbstractCegarLoop]: Abstraction has 627 states and 720 transitions. [2020-07-20 13:01:10,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 720 transitions. [2020-07-20 13:01:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 13:01:10,402 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:10,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:10,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:10,618 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:10,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:10,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1300385726, now seen corresponding path program 1 times [2020-07-20 13:01:10,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:10,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68063208] [2020-07-20 13:01:10,621 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:11,006 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:11,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:01:11,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:01:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:01:11,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:01:11,412 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:01:11,412 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:01:11,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:11,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:01:11 BoogieIcfgContainer [2020-07-20 13:01:11,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:01:11,847 INFO L168 Benchmark]: Toolchain (without parser) took 11277.86 ms. Allocated memory was 144.7 MB in the beginning and 315.6 MB in the end (delta: 170.9 MB). Free memory was 101.6 MB in the beginning and 84.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:11,848 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:01:11,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.93 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:11,865 INFO L168 Benchmark]: Boogie Preprocessor took 122.05 ms. Allocated memory is still 202.9 MB. Free memory was 171.1 MB in the beginning and 165.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:11,872 INFO L168 Benchmark]: RCFGBuilder took 1250.61 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 165.0 MB in the beginning and 195.5 MB in the end (delta: -30.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:11,876 INFO L168 Benchmark]: TraceAbstraction took 9271.02 ms. Allocated memory was 234.9 MB in the beginning and 315.6 MB in the end (delta: 80.7 MB). Free memory was 195.5 MB in the beginning and 84.2 MB in the end (delta: 111.3 MB). Peak memory consumption was 192.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:11,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 628.93 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.05 ms. Allocated memory is still 202.9 MB. Free memory was 171.1 MB in the beginning and 165.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1250.61 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 165.0 MB in the beginning and 195.5 MB in the end (delta: -30.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9271.02 ms. Allocated memory was 234.9 MB in the beginning and 315.6 MB in the end (delta: 80.7 MB). Free memory was 195.5 MB in the beginning and 84.2 MB in the end (delta: 111.3 MB). Peak memory consumption was 192.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=78, \old(head)=55, \old(head)=65, \old(methaneLevelCritical)=40, \old(pumpRunning)=29, \old(systemActive)=31, \old(waterLevel)=97, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] int retValue_acc ; [L259] 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] [L263] 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] [L264] 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] [L265] 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] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] 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] [L265] 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] [L265] tmp = valid_product() [L267] 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] [L269] 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] [L270] 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] [L249] 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] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] 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] [L327] 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] [L329] 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] [L335] tmp = __VERIFIER_nondet_int() [L337] 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] [L339] 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] [L94] COND TRUE waterLevel < 2 [L95] 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] [L339] 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] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \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=1, waterLevel=2] [L349] CALL changeMethaneLevel() 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] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=0, waterLevel=2] [L372] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L402] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L409] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L411] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L457] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L475] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L560] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L436] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L440] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L475] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L417] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1386 SDtfs, 571 SDslu, 2339 SDs, 0 SdLazy, 512 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 622 GetRequests, 593 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=627occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 33 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 712 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 77489 SizeOfPredicates, 20 NumberOfNonLiveVariables, 6201 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...