/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:54:05,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:54:05,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:54:05,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:54:05,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:54:05,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:54:05,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:54:05,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:54:05,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:54:05,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:54:05,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:54:05,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:54:05,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:54:05,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:54:05,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:54:05,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:54:05,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:54:05,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:54:05,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:54:05,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:54:05,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:54:05,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:54:05,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:54:05,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:54:05,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:54:05,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:54:05,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:54:05,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:54:05,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:54:05,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:54:05,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:54:05,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:54:05,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:54:05,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:54:05,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:54:05,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:54:05,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:54:05,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:54:05,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:54:05,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:54:05,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:54:05,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:54:05,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:54:05,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:54:05,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:54:05,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:54:05,197 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:54:05,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:54:05,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:54:05,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:54:05,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:54:05,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:54:05,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:54:05,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:54:05,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:54:05,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:54:05,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:54:05,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:54:05,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:54:05,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:54:05,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:54:05,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:54:05,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:54:05,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:54:05,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:54:05,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:54:05,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:54:05,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:54:05,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:05,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:54:05,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:54:05,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:54:05,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:54:05,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:54:05,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:54:05,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:54:05,519 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:54:05,520 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-07-21 12:54:05,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69879d6fa/7d2a1a121aeb4883b04fdc5f65ba4923/FLAG8887438e0 [2020-07-21 12:54:06,092 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:54:06,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-07-21 12:54:06,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69879d6fa/7d2a1a121aeb4883b04fdc5f65ba4923/FLAG8887438e0 [2020-07-21 12:54:06,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69879d6fa/7d2a1a121aeb4883b04fdc5f65ba4923 [2020-07-21 12:54:06,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:54:06,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:54:06,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:54:06,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:54:06,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:54:06,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28149ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06, skipping insertion in model container [2020-07-21 12:54:06,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:54:06,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:54:06,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:54:06,922 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:54:07,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:54:07,057 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:54:07,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07 WrapperNode [2020-07-21 12:54:07,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:54:07,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:54:07,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:54:07,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:54:07,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... [2020-07-21 12:54:07,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:54:07,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:54:07,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:54:07,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:54:07,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:54:07,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:54:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:54:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:54:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:54:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:54:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-07-21 12:54:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-07-21 12:54:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:54:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:54:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:54:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:54:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:54:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:54:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:54:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:54:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:54:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:54:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:54:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:54:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:54:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:54:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:54:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:54:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-07-21 12:54:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-07-21 12:54:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-07-21 12:54:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:54:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:54:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:54:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:54:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:54:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:54:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:54:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:54:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:54:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:54:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:54:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:54:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:54:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:54:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:54:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:54:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:54:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:54:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:54:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:54:08,266 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:54:08,267 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:54:08,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:54:08 BoogieIcfgContainer [2020-07-21 12:54:08,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:54:08,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:54:08,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:54:08,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:54:08,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:54:06" (1/3) ... [2020-07-21 12:54:08,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc25a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:54:08, skipping insertion in model container [2020-07-21 12:54:08,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:07" (2/3) ... [2020-07-21 12:54:08,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc25a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:54:08, skipping insertion in model container [2020-07-21 12:54:08,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:54:08" (3/3) ... [2020-07-21 12:54:08,280 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2020-07-21 12:54:08,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:54:08,297 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:54:08,311 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:54:08,335 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:54:08,335 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:54:08,335 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:54:08,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:54:08,336 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:54:08,336 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:54:08,336 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:54:08,336 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:54:08,361 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-07-21 12:54:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-21 12:54:08,370 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:08,371 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:08,371 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:08,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:08,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1869542645, now seen corresponding path program 1 times [2020-07-21 12:54:08,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:08,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869126407] [2020-07-21 12:54:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:08,753 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:08,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:08,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:54:08,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:54:08,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:08,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869126407] [2020-07-21 12:54:08,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:08,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:54:08,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146859956] [2020-07-21 12:54:08,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:54:08,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:08,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:54:08,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:54:08,837 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2020-07-21 12:54:08,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:08,882 INFO L93 Difference]: Finished difference Result 268 states and 331 transitions. [2020-07-21 12:54:08,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:54:08,883 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2020-07-21 12:54:08,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:08,896 INFO L225 Difference]: With dead ends: 268 [2020-07-21 12:54:08,896 INFO L226 Difference]: Without dead ends: 136 [2020-07-21 12:54:08,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:54:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-21 12:54:08,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-21 12:54:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-21 12:54:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2020-07-21 12:54:08,959 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 59 [2020-07-21 12:54:08,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:08,959 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2020-07-21 12:54:08,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:54:08,960 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2020-07-21 12:54:08,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 12:54:08,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:08,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:09,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:09,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:09,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:09,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1007263159, now seen corresponding path program 1 times [2020-07-21 12:54:09,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:09,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093211144] [2020-07-21 12:54:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:09,493 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:09,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:09,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:54:09,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:09,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:09,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093211144] [2020-07-21 12:54:09,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:09,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:54:09,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353768374] [2020-07-21 12:54:09,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:54:09,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:09,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:54:09,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:09,546 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 3 states. [2020-07-21 12:54:09,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:09,574 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2020-07-21 12:54:09,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:54:09,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 12:54:09,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:09,577 INFO L225 Difference]: With dead ends: 244 [2020-07-21 12:54:09,578 INFO L226 Difference]: Without dead ends: 136 [2020-07-21 12:54:09,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-21 12:54:09,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-21 12:54:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-21 12:54:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2020-07-21 12:54:09,595 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 60 [2020-07-21 12:54:09,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:09,597 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2020-07-21 12:54:09,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:54:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2020-07-21 12:54:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-21 12:54:09,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:09,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:09,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:09,815 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:09,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash -505906754, now seen corresponding path program 1 times [2020-07-21 12:54:09,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:09,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124015522] [2020-07-21 12:54:09,818 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:10,175 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:10,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:10,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:54:10,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:54:10,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:10,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124015522] [2020-07-21 12:54:10,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:10,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:54:10,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003928944] [2020-07-21 12:54:10,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:54:10,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:10,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:54:10,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:10,210 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 3 states. [2020-07-21 12:54:10,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:10,242 INFO L93 Difference]: Finished difference Result 217 states and 251 transitions. [2020-07-21 12:54:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:54:10,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-21 12:54:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:10,246 INFO L225 Difference]: With dead ends: 217 [2020-07-21 12:54:10,246 INFO L226 Difference]: Without dead ends: 127 [2020-07-21 12:54:10,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-07-21 12:54:10,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-07-21 12:54:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-21 12:54:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-07-21 12:54:10,261 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 73 [2020-07-21 12:54:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:10,261 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-07-21 12:54:10,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:54:10,261 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-07-21 12:54:10,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-07-21 12:54:10,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:10,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:10,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:10,479 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:10,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1588822882, now seen corresponding path program 1 times [2020-07-21 12:54:10,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:10,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839223612] [2020-07-21 12:54:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:10,774 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:10,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:10,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:54:10,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:10,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:10,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839223612] [2020-07-21 12:54:10,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:10,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:54:10,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354358639] [2020-07-21 12:54:10,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:54:10,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:10,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:54:10,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:54:10,831 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 6 states. [2020-07-21 12:54:11,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:11,366 INFO L93 Difference]: Finished difference Result 308 states and 373 transitions. [2020-07-21 12:54:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:54:11,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-07-21 12:54:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:11,369 INFO L225 Difference]: With dead ends: 308 [2020-07-21 12:54:11,370 INFO L226 Difference]: Without dead ends: 209 [2020-07-21 12:54:11,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:54:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-07-21 12:54:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 194. [2020-07-21 12:54:11,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-21 12:54:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 220 transitions. [2020-07-21 12:54:11,397 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 220 transitions. Word has length 77 [2020-07-21 12:54:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:11,398 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 220 transitions. [2020-07-21 12:54:11,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:54:11,398 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 220 transitions. [2020-07-21 12:54:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 12:54:11,400 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:11,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:11,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:11,615 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:11,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1801013738, now seen corresponding path program 1 times [2020-07-21 12:54:11,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:11,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445614247] [2020-07-21 12:54:11,617 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:11,879 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:11,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:11,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:54:11,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:11,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:11,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445614247] [2020-07-21 12:54:11,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:11,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:54:11,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980685464] [2020-07-21 12:54:11,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:54:11,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:11,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:54:11,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:54:11,935 INFO L87 Difference]: Start difference. First operand 194 states and 220 transitions. Second operand 6 states. [2020-07-21 12:54:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:12,170 INFO L93 Difference]: Finished difference Result 363 states and 420 transitions. [2020-07-21 12:54:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:54:12,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-07-21 12:54:12,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:12,181 INFO L225 Difference]: With dead ends: 363 [2020-07-21 12:54:12,181 INFO L226 Difference]: Without dead ends: 197 [2020-07-21 12:54:12,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:54:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-07-21 12:54:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2020-07-21 12:54:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-07-21 12:54:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 217 transitions. [2020-07-21 12:54:12,206 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 217 transitions. Word has length 91 [2020-07-21 12:54:12,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:12,207 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 217 transitions. [2020-07-21 12:54:12,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:54:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 217 transitions. [2020-07-21 12:54:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 12:54:12,209 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:12,209 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:12,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:12,420 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:12,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:12,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1999801536, now seen corresponding path program 1 times [2020-07-21 12:54:12,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:12,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012471284] [2020-07-21 12:54:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 12:54:12,690 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:12,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:12,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:54:12,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:12,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:12,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012471284] [2020-07-21 12:54:12,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:12,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:54:12,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770652251] [2020-07-21 12:54:12,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:54:12,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:12,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:54:12,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:54:12,741 INFO L87 Difference]: Start difference. First operand 193 states and 217 transitions. Second operand 6 states. [2020-07-21 12:54:12,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:12,775 INFO L93 Difference]: Finished difference Result 363 states and 415 transitions. [2020-07-21 12:54:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:54:12,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-07-21 12:54:12,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:12,782 INFO L225 Difference]: With dead ends: 363 [2020-07-21 12:54:12,782 INFO L226 Difference]: Without dead ends: 198 [2020-07-21 12:54:12,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:54:12,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-07-21 12:54:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-07-21 12:54:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-21 12:54:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 222 transitions. [2020-07-21 12:54:12,814 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 222 transitions. Word has length 92 [2020-07-21 12:54:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:12,815 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 222 transitions. [2020-07-21 12:54:12,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:54:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 222 transitions. [2020-07-21 12:54:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 12:54:12,817 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:12,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:13,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:13,031 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:13,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:13,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1298201662, now seen corresponding path program 1 times [2020-07-21 12:54:13,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:13,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267276828] [2020-07-21 12:54:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 12:54:13,299 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:13,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:13,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:54:13,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:13,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:13,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267276828] [2020-07-21 12:54:13,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:13,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:54:13,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16454605] [2020-07-21 12:54:13,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:54:13,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:13,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:54:13,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:54:13,344 INFO L87 Difference]: Start difference. First operand 198 states and 222 transitions. Second operand 5 states. [2020-07-21 12:54:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:13,372 INFO L93 Difference]: Finished difference Result 375 states and 431 transitions. [2020-07-21 12:54:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:54:13,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-07-21 12:54:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:13,375 INFO L225 Difference]: With dead ends: 375 [2020-07-21 12:54:13,375 INFO L226 Difference]: Without dead ends: 205 [2020-07-21 12:54:13,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:54:13,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-07-21 12:54:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2020-07-21 12:54:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-21 12:54:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 226 transitions. [2020-07-21 12:54:13,390 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 226 transitions. Word has length 92 [2020-07-21 12:54:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:13,390 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 226 transitions. [2020-07-21 12:54:13,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:54:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 226 transitions. [2020-07-21 12:54:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 12:54:13,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:13,392 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:13,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:13,607 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:13,608 INFO L82 PathProgramCache]: Analyzing trace with hash 427279235, now seen corresponding path program 1 times [2020-07-21 12:54:13,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:13,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502490113] [2020-07-21 12:54:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 12:54:13,849 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:13,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:13,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:54:13,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:13,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:13,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502490113] [2020-07-21 12:54:13,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:13,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:54:13,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113175495] [2020-07-21 12:54:13,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:54:13,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:13,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:54:13,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:13,877 INFO L87 Difference]: Start difference. First operand 202 states and 226 transitions. Second operand 3 states. [2020-07-21 12:54:13,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:13,915 INFO L93 Difference]: Finished difference Result 522 states and 612 transitions. [2020-07-21 12:54:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:54:13,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-21 12:54:13,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:13,918 INFO L225 Difference]: With dead ends: 522 [2020-07-21 12:54:13,918 INFO L226 Difference]: Without dead ends: 348 [2020-07-21 12:54:13,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:13,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-07-21 12:54:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 345. [2020-07-21 12:54:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-21 12:54:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 398 transitions. [2020-07-21 12:54:13,946 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 398 transitions. Word has length 92 [2020-07-21 12:54:13,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:13,946 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 398 transitions. [2020-07-21 12:54:13,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:54:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 398 transitions. [2020-07-21 12:54:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-21 12:54:13,948 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:13,949 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:14,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:14,162 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:14,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:14,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1298280163, now seen corresponding path program 1 times [2020-07-21 12:54:14,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:14,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404686964] [2020-07-21 12:54:14,165 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 12:54:14,406 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:14,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:14,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-21 12:54:14,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:14,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:14,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404686964] [2020-07-21 12:54:14,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:14,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 12:54:14,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961583629] [2020-07-21 12:54:14,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 12:54:14,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:14,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 12:54:14,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-21 12:54:14,513 INFO L87 Difference]: Start difference. First operand 345 states and 398 transitions. Second operand 10 states. [2020-07-21 12:54:15,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:15,626 INFO L93 Difference]: Finished difference Result 942 states and 1235 transitions. [2020-07-21 12:54:15,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 12:54:15,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-07-21 12:54:15,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:15,634 INFO L225 Difference]: With dead ends: 942 [2020-07-21 12:54:15,634 INFO L226 Difference]: Without dead ends: 625 [2020-07-21 12:54:15,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-07-21 12:54:15,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-07-21 12:54:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 463. [2020-07-21 12:54:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-07-21 12:54:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 545 transitions. [2020-07-21 12:54:15,709 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 545 transitions. Word has length 96 [2020-07-21 12:54:15,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:15,710 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 545 transitions. [2020-07-21 12:54:15,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 12:54:15,710 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 545 transitions. [2020-07-21 12:54:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 12:54:15,716 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:15,716 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:15,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:15,931 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:15,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:15,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1033047505, now seen corresponding path program 1 times [2020-07-21 12:54:15,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:15,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250606648] [2020-07-21 12:54:15,933 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 12:54:16,198 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:16,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:16,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:54:16,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:16,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:54:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 12:54:16,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250606648] [2020-07-21 12:54:16,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:54:16,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-21 12:54:16,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906880394] [2020-07-21 12:54:16,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 12:54:16,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:16,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 12:54:16,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-21 12:54:16,621 INFO L87 Difference]: Start difference. First operand 463 states and 545 transitions. Second operand 10 states. [2020-07-21 12:54:17,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:17,362 INFO L93 Difference]: Finished difference Result 555 states and 668 transitions. [2020-07-21 12:54:17,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 12:54:17,363 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2020-07-21 12:54:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:17,363 INFO L225 Difference]: With dead ends: 555 [2020-07-21 12:54:17,364 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:54:17,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 297 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-07-21 12:54:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:54:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:54:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:54:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:54:17,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-07-21 12:54:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:17,368 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:54:17,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 12:54:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:54:17,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:54:17,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:17,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:54:18,507 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2020-07-21 12:54:18,621 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2020-07-21 12:54:18,880 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-07-21 12:54:19,328 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-07-21 12:54:19,553 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-07-21 12:54:19,864 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2020-07-21 12:54:20,014 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-21 12:54:20,651 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-21 12:54:20,918 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2020-07-21 12:54:21,099 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2020-07-21 12:54:21,228 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-07-21 12:54:21,634 INFO L268 CegarLoopResult]: For program point L670(lines 670 674) no Hoare annotation was computed. [2020-07-21 12:54:21,634 INFO L268 CegarLoopResult]: For program point L670-1(lines 670 674) no Hoare annotation was computed. [2020-07-21 12:54:21,634 INFO L268 CegarLoopResult]: For program point L665(line 665) no Hoare annotation was computed. [2020-07-21 12:54:21,635 INFO L268 CegarLoopResult]: For program point L664-2(lines 664 685) no Hoare annotation was computed. [2020-07-21 12:54:21,635 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 639 694) no Hoare annotation was computed. [2020-07-21 12:54:21,635 INFO L268 CegarLoopResult]: For program point L686(lines 663 687) no Hoare annotation was computed. [2020-07-21 12:54:21,636 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 639 694) no Hoare annotation was computed. [2020-07-21 12:54:21,636 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 639 694) no Hoare annotation was computed. [2020-07-21 12:54:21,636 INFO L268 CegarLoopResult]: For program point L727(lines 727 731) no Hoare annotation was computed. [2020-07-21 12:54:21,636 INFO L268 CegarLoopResult]: For program point L727-1(lines 727 731) no Hoare annotation was computed. [2020-07-21 12:54:21,637 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 695 754) no Hoare annotation was computed. [2020-07-21 12:54:21,637 INFO L268 CegarLoopResult]: For program point L722(line 722) no Hoare annotation was computed. [2020-07-21 12:54:21,637 INFO L268 CegarLoopResult]: For program point L721-2(lines 721 746) no Hoare annotation was computed. [2020-07-21 12:54:21,637 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 695 754) no Hoare annotation was computed. [2020-07-21 12:54:21,638 INFO L268 CegarLoopResult]: For program point L747(lines 720 748) no Hoare annotation was computed. [2020-07-21 12:54:21,638 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 695 754) no Hoare annotation was computed. [2020-07-21 12:54:21,638 INFO L268 CegarLoopResult]: For program point L740(line 740) no Hoare annotation was computed. [2020-07-21 12:54:21,638 INFO L268 CegarLoopResult]: For program point L740-1(line 740) no Hoare annotation was computed. [2020-07-21 12:54:21,639 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 570 576) the Hoare annotation is: true [2020-07-21 12:54:21,639 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 570 576) no Hoare annotation was computed. [2020-07-21 12:54:21,639 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 577 585) no Hoare annotation was computed. [2020-07-21 12:54:21,639 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 577 585) the Hoare annotation is: true [2020-07-21 12:54:21,639 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 577 585) no Hoare annotation was computed. [2020-07-21 12:54:21,640 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 144 151) the Hoare annotation is: true [2020-07-21 12:54:21,640 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__1EXIT(lines 144 151) no Hoare annotation was computed. [2020-07-21 12:54:21,642 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__1FINAL(lines 144 151) no Hoare annotation was computed. [2020-07-21 12:54:21,642 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 152 161) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 .cse1 (not (<= ~pumpRunning~0 |old(~switchedOnBeforeTS~0)|)) (not (<= 1 ~pumpRunning~0))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 (<= 1 ~switchedOnBeforeTS~0) (not (= 0 ~pumpRunning~0))))) [2020-07-21 12:54:21,643 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 12:54:21,643 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__2EXIT(lines 152 161) no Hoare annotation was computed. [2020-07-21 12:54:21,643 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__2FINAL(lines 152 161) no Hoare annotation was computed. [2020-07-21 12:54:21,643 INFO L264 CegarLoopResult]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (= 0 ~pumpRunning~0))) (or .cse0 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1)) .cse2) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2020-07-21 12:54:21,643 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 162 190) the Hoare annotation is: true [2020-07-21 12:54:21,644 INFO L268 CegarLoopResult]: For program point L175(lines 175 181) no Hoare annotation was computed. [2020-07-21 12:54:21,645 INFO L268 CegarLoopResult]: For program point L174(lines 174 184) no Hoare annotation was computed. [2020-07-21 12:54:21,645 INFO L264 CegarLoopResult]: At program point L172(line 172) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~pumpRunning~0))))) [2020-07-21 12:54:21,645 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__3EXIT(lines 162 190) no Hoare annotation was computed. [2020-07-21 12:54:21,645 INFO L268 CegarLoopResult]: For program point L172-1(line 172) no Hoare annotation was computed. [2020-07-21 12:54:21,646 INFO L268 CegarLoopResult]: For program point L170(lines 170 187) no Hoare annotation was computed. [2020-07-21 12:54:21,646 INFO L268 CegarLoopResult]: For program point L170-1(lines 162 190) no Hoare annotation was computed. [2020-07-21 12:54:21,646 INFO L271 CegarLoopResult]: At program point L168(line 168) the Hoare annotation is: true [2020-07-21 12:54:21,646 INFO L268 CegarLoopResult]: For program point L168-1(line 168) no Hoare annotation was computed. [2020-07-21 12:54:21,646 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 271 293) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,647 INFO L264 CegarLoopResult]: At program point L283(line 283) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,647 INFO L264 CegarLoopResult]: At program point L283-1(line 283) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,647 INFO L268 CegarLoopResult]: For program point L281(lines 281 288) no Hoare annotation was computed. [2020-07-21 12:54:21,647 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 271 293) no Hoare annotation was computed. [2020-07-21 12:54:21,647 INFO L268 CegarLoopResult]: For program point L281-1(lines 281 288) no Hoare annotation was computed. [2020-07-21 12:54:21,648 INFO L268 CegarLoopResult]: For program point L279(line 279) no Hoare annotation was computed. [2020-07-21 12:54:21,648 INFO L264 CegarLoopResult]: At program point L278(line 278) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,648 INFO L264 CegarLoopResult]: At program point L277(line 277) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,648 INFO L264 CegarLoopResult]: At program point L277-1(line 277) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,648 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 271 293) no Hoare annotation was computed. [2020-07-21 12:54:21,649 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 225 248) no Hoare annotation was computed. [2020-07-21 12:54:21,649 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 225 248) no Hoare annotation was computed. [2020-07-21 12:54:21,649 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 225 248) no Hoare annotation was computed. [2020-07-21 12:54:21,649 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-07-21 12:54:21,649 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-07-21 12:54:21,649 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-07-21 12:54:21,650 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-07-21 12:54:21,650 INFO L268 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-07-21 12:54:21,650 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-07-21 12:54:21,650 INFO L268 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-07-21 12:54:21,650 INFO L268 CegarLoopResult]: For program point L236(line 236) no Hoare annotation was computed. [2020-07-21 12:54:21,650 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-07-21 12:54:21,651 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-07-21 12:54:21,651 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-07-21 12:54:21,651 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-07-21 12:54:21,651 INFO L268 CegarLoopResult]: For program point L231(line 231) no Hoare annotation was computed. [2020-07-21 12:54:21,651 INFO L268 CegarLoopResult]: For program point L230(line 230) no Hoare annotation was computed. [2020-07-21 12:54:21,651 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 422 430) no Hoare annotation was computed. [2020-07-21 12:54:21,652 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 422 430) the Hoare annotation is: true [2020-07-21 12:54:21,652 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 422 430) no Hoare annotation was computed. [2020-07-21 12:54:21,652 INFO L268 CegarLoopResult]: For program point L450-2(lines 450 458) no Hoare annotation was computed. [2020-07-21 12:54:21,652 INFO L268 CegarLoopResult]: For program point L438(lines 438 446) no Hoare annotation was computed. [2020-07-21 12:54:21,652 INFO L268 CegarLoopResult]: For program point L438-2(lines 438 446) no Hoare annotation was computed. [2020-07-21 12:54:21,653 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 431 466) no Hoare annotation was computed. [2020-07-21 12:54:21,653 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 12:54:21,653 INFO L268 CegarLoopResult]: For program point L461-1(line 461) no Hoare annotation was computed. [2020-07-21 12:54:21,653 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 431 466) no Hoare annotation was computed. [2020-07-21 12:54:21,653 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 431 466) no Hoare annotation was computed. [2020-07-21 12:54:21,653 INFO L268 CegarLoopResult]: For program point L450(lines 450 458) no Hoare annotation was computed. [2020-07-21 12:54:21,654 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 563 569) no Hoare annotation was computed. [2020-07-21 12:54:21,654 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 563 569) the Hoare annotation is: true [2020-07-21 12:54:21,654 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 593 638) no Hoare annotation was computed. [2020-07-21 12:54:21,654 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 593 638) no Hoare annotation was computed. [2020-07-21 12:54:21,654 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 593 638) no Hoare annotation was computed. [2020-07-21 12:54:21,655 INFO L268 CegarLoopResult]: For program point L926(lines 926 933) no Hoare annotation was computed. [2020-07-21 12:54:21,655 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 906 951) no Hoare annotation was computed. [2020-07-21 12:54:21,656 INFO L268 CegarLoopResult]: For program point L920(lines 920 940) no Hoare annotation was computed. [2020-07-21 12:54:21,656 INFO L268 CegarLoopResult]: For program point L920-1(lines 920 940) no Hoare annotation was computed. [2020-07-21 12:54:21,656 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 906 951) no Hoare annotation was computed. [2020-07-21 12:54:21,656 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 906 951) no Hoare annotation was computed. [2020-07-21 12:54:21,656 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 257 267) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,657 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 257 267) no Hoare annotation was computed. [2020-07-21 12:54:21,657 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 257 267) no Hoare annotation was computed. [2020-07-21 12:54:21,657 INFO L264 CegarLoopResult]: At program point L262(line 262) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,657 INFO L271 CegarLoopResult]: At program point L416(line 416) the Hoare annotation is: true [2020-07-21 12:54:21,657 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 411 421) the Hoare annotation is: true [2020-07-21 12:54:21,658 INFO L268 CegarLoopResult]: For program point L416-1(line 416) no Hoare annotation was computed. [2020-07-21 12:54:21,658 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 411 421) no Hoare annotation was computed. [2020-07-21 12:54:21,658 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 411 421) no Hoare annotation was computed. [2020-07-21 12:54:21,658 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 403 410) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) [2020-07-21 12:54:21,658 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 403 410) no Hoare annotation was computed. [2020-07-21 12:54:21,659 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 403 410) no Hoare annotation was computed. [2020-07-21 12:54:21,659 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 126 139) no Hoare annotation was computed. [2020-07-21 12:54:21,659 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 126 139) the Hoare annotation is: true [2020-07-21 12:54:21,659 INFO L268 CegarLoopResult]: For program point L130(lines 130 136) no Hoare annotation was computed. [2020-07-21 12:54:21,659 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 126 139) no Hoare annotation was computed. [2020-07-21 12:54:21,660 INFO L264 CegarLoopResult]: At program point L384(line 384) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:54:21,660 INFO L264 CegarLoopResult]: At program point L380(line 380) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:54:21,660 INFO L268 CegarLoopResult]: For program point L378(lines 378 386) no Hoare annotation was computed. [2020-07-21 12:54:21,660 INFO L264 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:54:21,661 INFO L268 CegarLoopResult]: For program point L376-1(line 376) no Hoare annotation was computed. [2020-07-21 12:54:21,661 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 370 394) no Hoare annotation was computed. [2020-07-21 12:54:21,661 INFO L268 CegarLoopResult]: For program point L374(lines 374 391) no Hoare annotation was computed. [2020-07-21 12:54:21,661 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 370 394) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:54:21,662 INFO L264 CegarLoopResult]: At program point L389(line 389) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:54:21,662 INFO L268 CegarLoopResult]: For program point L389-1(lines 370 394) no Hoare annotation was computed. [2020-07-21 12:54:21,662 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 336 342) no Hoare annotation was computed. [2020-07-21 12:54:21,662 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 336 342) the Hoare annotation is: true [2020-07-21 12:54:21,662 INFO L264 CegarLoopResult]: At program point testENTRY(lines 487 550) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:21,663 INFO L264 CegarLoopResult]: At program point L543(lines 496 544) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-21 12:54:21,663 INFO L268 CegarLoopResult]: For program point testFINAL(lines 487 550) no Hoare annotation was computed. [2020-07-21 12:54:21,663 INFO L268 CegarLoopResult]: For program point L533(lines 533 537) no Hoare annotation was computed. [2020-07-21 12:54:21,663 INFO L264 CegarLoopResult]: At program point L533-2(lines 527 538) the Hoare annotation is: (let ((.cse2 (<= 1 ~pumpRunning~0)) (.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2020-07-21 12:54:21,664 INFO L268 CegarLoopResult]: For program point L498(lines 497 542) no Hoare annotation was computed. [2020-07-21 12:54:21,664 INFO L268 CegarLoopResult]: For program point L527(lines 527 538) no Hoare annotation was computed. [2020-07-21 12:54:21,664 INFO L264 CegarLoopResult]: At program point L519(line 519) the Hoare annotation is: (let ((.cse2 (<= 1 ~pumpRunning~0)) (.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2020-07-21 12:54:21,664 INFO L268 CegarLoopResult]: For program point L517(lines 517 523) no Hoare annotation was computed. [2020-07-21 12:54:21,664 INFO L268 CegarLoopResult]: For program point L517-1(lines 517 523) no Hoare annotation was computed. [2020-07-21 12:54:21,665 INFO L264 CegarLoopResult]: At program point L509(line 509) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2020-07-21 12:54:21,665 INFO L264 CegarLoopResult]: At program point L540(lines 497 542) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2020-07-21 12:54:21,665 INFO L268 CegarLoopResult]: For program point L507(lines 507 513) no Hoare annotation was computed. [2020-07-21 12:54:21,665 INFO L268 CegarLoopResult]: For program point L507-1(lines 507 513) no Hoare annotation was computed. [2020-07-21 12:54:21,665 INFO L268 CegarLoopResult]: For program point L499(lines 499 503) no Hoare annotation was computed. [2020-07-21 12:54:21,665 INFO L268 CegarLoopResult]: For program point testEXIT(lines 487 550) no Hoare annotation was computed. [2020-07-21 12:54:21,665 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 860 905) no Hoare annotation was computed. [2020-07-21 12:54:21,665 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 860 905) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 860 905) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point L880(lines 880 887) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point L874(lines 874 894) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point L874-1(lines 874 894) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 94 116) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point L102(lines 102 110) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 94 116) no Hoare annotation was computed. [2020-07-21 12:54:21,666 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 94 116) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point L102-2(lines 102 110) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 553 562) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 553 562) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 553 562) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 757 859) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point L822(line 822) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point L822-1(line 822) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point L781(lines 781 785) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point L845(lines 845 856) no Hoare annotation was computed. [2020-07-21 12:54:21,667 INFO L268 CegarLoopResult]: For program point L808(lines 808 812) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 757 859) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point L806-2(lines 806 826) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point L827(lines 805 828) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point L786(lines 786 802) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 757 859) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point L846(lines 846 853) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point L807(lines 806 826) no Hoare annotation was computed. [2020-07-21 12:54:21,668 INFO L268 CegarLoopResult]: For program point L838(line 838) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L268 CegarLoopResult]: For program point L838-1(line 838) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L268 CegarLoopResult]: For program point L803(lines 803 844) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-21 12:54:21,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 395 402) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 395 402) no Hoare annotation was computed. [2020-07-21 12:54:21,669 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 395 402) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:54:21,669 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 117 125) the Hoare annotation is: true [2020-07-21 12:54:21,670 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 117 125) no Hoare annotation was computed. [2020-07-21 12:54:21,670 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 117 125) no Hoare annotation was computed. [2020-07-21 12:54:21,670 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 467 485) no Hoare annotation was computed. [2020-07-21 12:54:21,670 INFO L268 CegarLoopResult]: For program point L476(lines 476 480) no Hoare annotation was computed. [2020-07-21 12:54:21,670 INFO L271 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: true [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point L476-2(lines 476 480) no Hoare annotation was computed. [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-07-21 12:54:21,671 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 467 485) the Hoare annotation is: true [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 467 485) no Hoare annotation was computed. [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point L77-1(lines 73 84) no Hoare annotation was computed. [2020-07-21 12:54:21,671 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 73 84) the Hoare annotation is: true [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 73 84) no Hoare annotation was computed. [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,671 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,672 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,672 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 85 93) the Hoare annotation is: true [2020-07-21 12:54:21,672 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 85 93) no Hoare annotation was computed. [2020-07-21 12:54:21,672 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 85 93) no Hoare annotation was computed. [2020-07-21 12:54:21,672 INFO L264 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse3) .cse4) (or .cse0 .cse4 .cse1 (and .cse2 (<= 2 ~waterLevel~0) .cse3 (<= ~waterLevel~0 2)) (not (<= 2 |old(~waterLevel~0)|))))) [2020-07-21 12:54:21,672 INFO L268 CegarLoopResult]: For program point L316(lines 312 334) no Hoare annotation was computed. [2020-07-21 12:54:21,672 INFO L268 CegarLoopResult]: For program point L314(lines 312 334) no Hoare annotation was computed. [2020-07-21 12:54:21,673 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 309 335) the Hoare annotation is: (let ((.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (<= 2 ~waterLevel~0)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 (and .cse5 (= 0 ~pumpRunning~0))) (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse5 .cse6) .cse0 .cse7 .cse3) (or .cse0 (and .cse1 .cse6 (<= ~waterLevel~0 2)) .cse7 .cse3 .cse4) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2020-07-21 12:54:21,674 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 309 335) no Hoare annotation was computed. [2020-07-21 12:54:21,674 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 309 335) no Hoare annotation was computed. [2020-07-21 12:54:21,674 INFO L264 CegarLoopResult]: At program point L325(line 325) the Hoare annotation is: (let ((.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or .cse0 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) (or .cse0 .cse3 .cse4 (and .cse6 (= 0 ~pumpRunning~0))) (or .cse0 .cse1 .cse2 .cse4 .cse5)))) [2020-07-21 12:54:21,674 INFO L264 CegarLoopResult]: At program point L323(lines 323 329) the Hoare annotation is: (let ((.cse7 (= 0 ~pumpRunning~0)) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (<= ~waterLevel~0 1))) (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10)) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (and .cse6 .cse7 (<= 1 ~switchedOnBeforeTS~0) .cse10)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse5 (and .cse6 .cse7)) (let ((.cse8 (<= 2 ~waterLevel~0))) (or .cse0 (and .cse8 .cse6 .cse7) .cse5 .cse4 .cse9 (and .cse8 (<= ~waterLevel~0 2) (<= 1 ~pumpRunning~0)))) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse9)))) [2020-07-21 12:54:21,674 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 194 223) no Hoare annotation was computed. [2020-07-21 12:54:21,675 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 194 223) the Hoare annotation is: true [2020-07-21 12:54:21,675 INFO L271 CegarLoopResult]: At program point L219(lines 194 223) the Hoare annotation is: true [2020-07-21 12:54:21,675 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-07-21 12:54:21,675 INFO L268 CegarLoopResult]: For program point L208(lines 208 212) no Hoare annotation was computed. [2020-07-21 12:54:21,675 INFO L271 CegarLoopResult]: At program point L208-1(lines 208 212) the Hoare annotation is: true [2020-07-21 12:54:21,675 INFO L268 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-07-21 12:54:21,675 INFO L271 CegarLoopResult]: At program point L204-2(lines 204 218) the Hoare annotation is: true [2020-07-21 12:54:21,675 INFO L271 CegarLoopResult]: At program point L200(line 200) the Hoare annotation is: true [2020-07-21 12:54:21,675 INFO L268 CegarLoopResult]: For program point L200-1(line 200) no Hoare annotation was computed. [2020-07-21 12:54:21,676 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 49 60) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse3 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1 .cse2 .cse3))) [2020-07-21 12:54:21,677 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 49 60) no Hoare annotation was computed. [2020-07-21 12:54:21,677 INFO L268 CegarLoopResult]: For program point L53-1(lines 49 60) no Hoare annotation was computed. [2020-07-21 12:54:21,677 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 249 255) no Hoare annotation was computed. [2020-07-21 12:54:21,677 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 249 255) the Hoare annotation is: true [2020-07-21 12:54:21,677 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,677 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:54:21,677 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:54:21,678 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:54:21,678 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 344 368) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:54:21,678 INFO L268 CegarLoopResult]: For program point L352(lines 352 360) no Hoare annotation was computed. [2020-07-21 12:54:21,678 INFO L264 CegarLoopResult]: At program point L350(line 350) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:54:21,678 INFO L268 CegarLoopResult]: For program point L350-1(line 350) no Hoare annotation was computed. [2020-07-21 12:54:21,678 INFO L268 CegarLoopResult]: For program point L348(lines 348 365) no Hoare annotation was computed. [2020-07-21 12:54:21,678 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 344 368) no Hoare annotation was computed. [2020-07-21 12:54:21,679 INFO L264 CegarLoopResult]: At program point L363(line 363) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))))) [2020-07-21 12:54:21,679 INFO L268 CegarLoopResult]: For program point L363-1(lines 344 368) no Hoare annotation was computed. [2020-07-21 12:54:21,679 INFO L264 CegarLoopResult]: At program point L358(line 358) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= 0 ~pumpRunning~0)) .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:54:21,679 INFO L264 CegarLoopResult]: At program point L354(line 354) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:54:21,679 INFO L268 CegarLoopResult]: For program point L65-1(lines 61 72) no Hoare annotation was computed. [2020-07-21 12:54:21,679 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 61 72) no Hoare annotation was computed. [2020-07-21 12:54:21,680 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 61 72) the Hoare annotation is: (let ((.cse1 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 1 ~pumpRunning~0))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse7) (or .cse0 .cse1 .cse2 .cse7 .cse4) (or .cse5 .cse0 .cse6 .cse3))) [2020-07-21 12:54:21,680 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 295 302) no Hoare annotation was computed. [2020-07-21 12:54:21,680 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 299) no Hoare annotation was computed. [2020-07-21 12:54:21,680 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 295 302) the Hoare annotation is: true [2020-07-21 12:54:21,680 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 295 302) no Hoare annotation was computed. [2020-07-21 12:54:21,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:54:21 BoogieIcfgContainer [2020-07-21 12:54:21,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:54:21,709 INFO L168 Benchmark]: Toolchain (without parser) took 15274.88 ms. Allocated memory was 143.7 MB in the beginning and 394.3 MB in the end (delta: 250.6 MB). Free memory was 100.1 MB in the beginning and 133.5 MB in the end (delta: -33.4 MB). Peak memory consumption was 236.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:21,709 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 12:54:21,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.61 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 169.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:21,717 INFO L168 Benchmark]: Boogie Preprocessor took 117.91 ms. Allocated memory is still 201.3 MB. Free memory was 169.2 MB in the beginning and 164.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:21,721 INFO L168 Benchmark]: RCFGBuilder took 1095.12 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 164.9 MB in the beginning and 196.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:21,722 INFO L168 Benchmark]: TraceAbstraction took 13433.34 ms. Allocated memory was 231.2 MB in the beginning and 394.3 MB in the end (delta: 163.1 MB). Free memory was 194.7 MB in the beginning and 133.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 243.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:21,729 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 143.7 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 622.61 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 169.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.91 ms. Allocated memory is still 201.3 MB. Free memory was 169.2 MB in the beginning and 164.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1095.12 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 164.9 MB in the beginning and 196.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13433.34 ms. Allocated memory was 231.2 MB in the beginning and 394.3 MB in the end (delta: 163.1 MB). Free memory was 194.7 MB in the beginning and 133.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 243.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 299]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= systemActive) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 497]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || (((2 <= waterLevel && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= pumpRunning)) || !(1 <= systemActive)) || !(0 == \old(pumpRunning))) || ((waterLevel <= 2 && 0 == pumpRunning) && splverifierCounter <= 0)) || (((pumpRunning <= switchedOnBeforeTS && waterLevel <= 1) && splverifierCounter <= 0) && 1 <= pumpRunning) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1769 SDtfs, 1239 SDslu, 2914 SDs, 0 SdLazy, 1618 SolverSat, 504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1056 GetRequests, 994 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 187 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 827 PreInvPairs, 902 NumberOfFragments, 1509 HoareAnnotationTreeSize, 827 FomulaSimplifications, 1330 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 61 FomulaSimplificationsInter, 7300 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 887 NumberOfCodeBlocks, 887 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1031 ConstructedInterpolants, 0 QuantifiedInterpolants, 202485 SizeOfPredicates, 23 NumberOfNonLiveVariables, 7554 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 89/111 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 correct! Received shutdown request...