/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_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:53:24,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:53:24,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:53:24,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:53:24,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:53:24,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:53:24,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:53:24,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:53:24,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:53:24,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:53:24,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:53:24,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:53:24,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:53:24,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:53:24,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:53:24,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:53:24,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:53:24,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:53:24,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:53:24,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:53:24,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:53:24,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:53:24,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:53:24,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:53:24,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:53:24,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:53:24,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:53:24,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:53:24,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:53:24,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:53:24,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:53:24,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:53:24,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:53:24,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:53:24,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:53:24,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:53:24,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:53:24,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:53:24,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:53:24,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:53:24,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:53:24,099 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 12:53:24,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:53:24,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:53:24,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:53:24,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:53:24,123 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:53:24,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:53:24,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:53:24,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:53:24,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:53:24,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:53:24,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:53:24,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:53:24,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:53:24,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:53:24,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:53:24,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:53:24,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:53:24,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:53:24,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:53:24,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:53:24,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:53:24,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:53:24,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:53:24,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:53:24,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:53:24,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:53:24,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:24,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:53:24,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:53:24,129 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 12:53:24,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:53:24,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:53:24,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:53:24,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:53:24,410 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:53:24,411 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-07-21 12:53:24,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edbfe561/e02c79e3d09d45839020d872c633d63b/FLAG03d018478 [2020-07-21 12:53:24,936 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:53:24,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-07-21 12:53:24,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edbfe561/e02c79e3d09d45839020d872c633d63b/FLAG03d018478 [2020-07-21 12:53:25,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edbfe561/e02c79e3d09d45839020d872c633d63b [2020-07-21 12:53:25,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:53:25,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:53:25,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:25,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:53:25,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:53:25,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:25" (1/1) ... [2020-07-21 12:53:25,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e98d2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:25, skipping insertion in model container [2020-07-21 12:53:25,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:25" (1/1) ... [2020-07-21 12:53:25,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:53:25,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:53:25,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:25,852 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:53:25,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:26,015 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:53:26,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26 WrapperNode [2020-07-21 12:53:26,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:26,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:53:26,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:53:26,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:53:26,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:53:26,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:53:26,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:53:26,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:53:26,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (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 12:53:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:53:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:53:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:53:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:53:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:53:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:53:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:53:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:53:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:53:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:53:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:53:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:53:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:53:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:53:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:53:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:53:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:53:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:53:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:53:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:53:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:53:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:53:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:53:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:53:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:53:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:53:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:53:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:53:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:53:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:53:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:53:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:53:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:53:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:53:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 12:53:26,202 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:53:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:53:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:53:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:53:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:53:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:53:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:53:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:53:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:53:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:53:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:53:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:53:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:53:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:53:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:53:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:53:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:53:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:53:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:53:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:53:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:53:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:53:26,209 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:53:26,209 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:53:26,209 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:53:26,210 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:53:26,210 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:53:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:53:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:53:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:53:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:53:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:53:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:53:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:53:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:53:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:53:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 12:53:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:53:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:53:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:53:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:53:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:53:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:53:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:53:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:53:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:53:27,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:53:27,198 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:53:27,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:27 BoogieIcfgContainer [2020-07-21 12:53:27,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:53:27,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:53:27,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:53:27,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:53:27,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:53:25" (1/3) ... [2020-07-21 12:53:27,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df610ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:27, skipping insertion in model container [2020-07-21 12:53:27,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (2/3) ... [2020-07-21 12:53:27,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df610ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:27, skipping insertion in model container [2020-07-21 12:53:27,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:27" (3/3) ... [2020-07-21 12:53:27,215 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-07-21 12:53:27,224 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:53:27,233 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:53:27,246 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:53:27,268 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:53:27,268 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:53:27,268 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:53:27,269 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:53:27,269 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:53:27,269 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:53:27,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:53:27,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:53:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-07-21 12:53:27,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 12:53:27,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:27,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:27,301 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:27,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:27,305 INFO L82 PathProgramCache]: Analyzing trace with hash -298144076, now seen corresponding path program 1 times [2020-07-21 12:53:27,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:27,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044627045] [2020-07-21 12:53:27,315 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 12:53:27,692 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:27,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:27,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:53:27,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:27,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:27,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044627045] [2020-07-21 12:53:27,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:27,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:53:27,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106435452] [2020-07-21 12:53:27,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:53:27,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:27,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:53:27,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:27,762 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 2 states. [2020-07-21 12:53:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:27,808 INFO L93 Difference]: Finished difference Result 294 states and 357 transitions. [2020-07-21 12:53:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:53:27,810 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 12:53:27,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:27,826 INFO L225 Difference]: With dead ends: 294 [2020-07-21 12:53:27,826 INFO L226 Difference]: Without dead ends: 147 [2020-07-21 12:53:27,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:27,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-21 12:53:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-07-21 12:53:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-07-21 12:53:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2020-07-21 12:53:27,889 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2020-07-21 12:53:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:27,890 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2020-07-21 12:53:27,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:53:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2020-07-21 12:53:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 12:53:27,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:27,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:28,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,109 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:28,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:28,109 INFO L82 PathProgramCache]: Analyzing trace with hash -491113124, now seen corresponding path program 1 times [2020-07-21 12:53:28,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:28,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466744584] [2020-07-21 12:53:28,111 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 12:53:28,494 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:28,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:28,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:53:28,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:28,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:28,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466744584] [2020-07-21 12:53:28,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:28,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:28,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348556889] [2020-07-21 12:53:28,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:28,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:28,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:28,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:28,543 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 3 states. [2020-07-21 12:53:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:28,569 INFO L93 Difference]: Finished difference Result 239 states and 275 transitions. [2020-07-21 12:53:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:28,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 12:53:28,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:28,572 INFO L225 Difference]: With dead ends: 239 [2020-07-21 12:53:28,572 INFO L226 Difference]: Without dead ends: 138 [2020-07-21 12:53:28,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:28,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-21 12:53:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-07-21 12:53:28,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-07-21 12:53:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2020-07-21 12:53:28,590 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2020-07-21 12:53:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:28,591 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2020-07-21 12:53:28,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:28,591 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2020-07-21 12:53:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:53:28,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:28,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:28,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,807 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:28,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1388977157, now seen corresponding path program 1 times [2020-07-21 12:53:28,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:28,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222474907] [2020-07-21 12:53:28,808 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 12:53:29,054 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:29,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222474907] [2020-07-21 12:53:29,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:29,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792471997] [2020-07-21 12:53:29,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:29,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:29,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,093 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 3 states. [2020-07-21 12:53:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,112 INFO L93 Difference]: Finished difference Result 252 states and 293 transitions. [2020-07-21 12:53:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:29,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 12:53:29,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,118 INFO L225 Difference]: With dead ends: 252 [2020-07-21 12:53:29,118 INFO L226 Difference]: Without dead ends: 138 [2020-07-21 12:53:29,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-21 12:53:29,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-07-21 12:53:29,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-07-21 12:53:29,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2020-07-21 12:53:29,132 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2020-07-21 12:53:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:29,133 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2020-07-21 12:53:29,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:29,133 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2020-07-21 12:53:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 12:53:29,136 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:29,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:29,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,350 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:29,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:29,350 INFO L82 PathProgramCache]: Analyzing trace with hash 105794737, now seen corresponding path program 1 times [2020-07-21 12:53:29,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:29,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401399370] [2020-07-21 12:53:29,352 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 12:53:29,676 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:29,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401399370] [2020-07-21 12:53:29,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:29,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454066023] [2020-07-21 12:53:29,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:29,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:29,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:29,743 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 6 states. [2020-07-21 12:53:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,982 INFO L93 Difference]: Finished difference Result 355 states and 425 transitions. [2020-07-21 12:53:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:29,982 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-07-21 12:53:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,986 INFO L225 Difference]: With dead ends: 355 [2020-07-21 12:53:29,987 INFO L226 Difference]: Without dead ends: 241 [2020-07-21 12:53:29,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 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 12:53:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-07-21 12:53:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-07-21 12:53:30,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-07-21 12:53:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 286 transitions. [2020-07-21 12:53:30,021 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 286 transitions. Word has length 65 [2020-07-21 12:53:30,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:30,022 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 286 transitions. [2020-07-21 12:53:30,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:30,022 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 286 transitions. [2020-07-21 12:53:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-21 12:53:30,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:30,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:30,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,230 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:30,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:30,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1475234795, now seen corresponding path program 1 times [2020-07-21 12:53:30,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:30,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936836050] [2020-07-21 12:53:30,232 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 12:53:30,535 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:30,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:30,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:53:30,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:30,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:30,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936836050] [2020-07-21 12:53:30,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:30,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:30,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264139418] [2020-07-21 12:53:30,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:30,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:30,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:30,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:30,576 INFO L87 Difference]: Start difference. First operand 241 states and 286 transitions. Second operand 6 states. [2020-07-21 12:53:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:31,165 INFO L93 Difference]: Finished difference Result 563 states and 698 transitions. [2020-07-21 12:53:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:31,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-21 12:53:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:31,171 INFO L225 Difference]: With dead ends: 563 [2020-07-21 12:53:31,171 INFO L226 Difference]: Without dead ends: 346 [2020-07-21 12:53:31,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 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 12:53:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-07-21 12:53:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 330. [2020-07-21 12:53:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-07-21 12:53:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 383 transitions. [2020-07-21 12:53:31,200 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 383 transitions. Word has length 69 [2020-07-21 12:53:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:31,201 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 383 transitions. [2020-07-21 12:53:31,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 383 transitions. [2020-07-21 12:53:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 12:53:31,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:31,205 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:31,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,420 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:31,422 INFO L82 PathProgramCache]: Analyzing trace with hash -747258615, now seen corresponding path program 1 times [2020-07-21 12:53:31,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:31,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770664355] [2020-07-21 12:53:31,423 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 12:53:31,686 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:31,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:31,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:53:31,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 12:53:31,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:31,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770664355] [2020-07-21 12:53:31,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:31,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:53:31,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684617743] [2020-07-21 12:53:31,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:53:31,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:31,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:53:31,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:31,736 INFO L87 Difference]: Start difference. First operand 330 states and 383 transitions. Second operand 5 states. [2020-07-21 12:53:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:31,776 INFO L93 Difference]: Finished difference Result 643 states and 764 transitions. [2020-07-21 12:53:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:53:31,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-07-21 12:53:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:31,784 INFO L225 Difference]: With dead ends: 643 [2020-07-21 12:53:31,784 INFO L226 Difference]: Without dead ends: 337 [2020-07-21 12:53:31,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 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 12:53:31,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-21 12:53:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2020-07-21 12:53:31,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-21 12:53:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 389 transitions. [2020-07-21 12:53:31,833 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 389 transitions. Word has length 145 [2020-07-21 12:53:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:31,836 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 389 transitions. [2020-07-21 12:53:31,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:53:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 389 transitions. [2020-07-21 12:53:31,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 12:53:31,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:31,842 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:32,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,057 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:32,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:32,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2098643833, now seen corresponding path program 1 times [2020-07-21 12:53:32,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:32,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952014898] [2020-07-21 12:53:32,058 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 12:53:32,372 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:32,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:32,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:32,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:32,418 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 12:53:32,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:32,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952014898] [2020-07-21 12:53:32,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:32,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:32,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517539098] [2020-07-21 12:53:32,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:32,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:32,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:32,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:32,420 INFO L87 Difference]: Start difference. First operand 337 states and 389 transitions. Second operand 6 states. [2020-07-21 12:53:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:32,463 INFO L93 Difference]: Finished difference Result 655 states and 763 transitions. [2020-07-21 12:53:32,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:32,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 12:53:32,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:32,466 INFO L225 Difference]: With dead ends: 655 [2020-07-21 12:53:32,466 INFO L226 Difference]: Without dead ends: 342 [2020-07-21 12:53:32,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 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 12:53:32,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-07-21 12:53:32,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2020-07-21 12:53:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-07-21 12:53:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 394 transitions. [2020-07-21 12:53:32,487 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 394 transitions. Word has length 145 [2020-07-21 12:53:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:32,488 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 394 transitions. [2020-07-21 12:53:32,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 394 transitions. [2020-07-21 12:53:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 12:53:32,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:32,490 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:32,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,705 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:32,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1686850373, now seen corresponding path program 1 times [2020-07-21 12:53:32,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:32,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828802751] [2020-07-21 12:53:32,707 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 12:53:32,949 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:32,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:32,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:32,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 12:53:33,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:33,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828802751] [2020-07-21 12:53:33,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:33,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:33,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599822488] [2020-07-21 12:53:33,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:33,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:33,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:33,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:33,003 INFO L87 Difference]: Start difference. First operand 342 states and 394 transitions. Second operand 6 states. [2020-07-21 12:53:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:33,045 INFO L93 Difference]: Finished difference Result 639 states and 762 transitions. [2020-07-21 12:53:33,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:33,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 12:53:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:33,049 INFO L225 Difference]: With dead ends: 639 [2020-07-21 12:53:33,049 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 12:53:33,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 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 12:53:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 12:53:33,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 12:53:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 12:53:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 369 transitions. [2020-07-21 12:53:33,068 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 369 transitions. Word has length 145 [2020-07-21 12:53:33,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:33,069 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 369 transitions. [2020-07-21 12:53:33,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 369 transitions. [2020-07-21 12:53:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 12:53:33,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:33,071 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:33,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:33,285 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash -741211256, now seen corresponding path program 1 times [2020-07-21 12:53:33,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:33,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802640972] [2020-07-21 12:53:33,287 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 12:53:33,463 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:53:33,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:33,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:53:33,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:33,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:33,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802640972] [2020-07-21 12:53:33,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:33,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:33,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691668288] [2020-07-21 12:53:33,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:33,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:33,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:33,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:33,576 INFO L87 Difference]: Start difference. First operand 319 states and 369 transitions. Second operand 6 states. [2020-07-21 12:53:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:34,430 INFO L93 Difference]: Finished difference Result 845 states and 1039 transitions. [2020-07-21 12:53:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:34,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 12:53:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:34,435 INFO L225 Difference]: With dead ends: 845 [2020-07-21 12:53:34,435 INFO L226 Difference]: Without dead ends: 550 [2020-07-21 12:53:34,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 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 12:53:34,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-07-21 12:53:34,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 534. [2020-07-21 12:53:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-07-21 12:53:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 632 transitions. [2020-07-21 12:53:34,477 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 632 transitions. Word has length 145 [2020-07-21 12:53:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:34,479 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 632 transitions. [2020-07-21 12:53:34,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 632 transitions. [2020-07-21 12:53:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 12:53:34,482 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:34,483 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:34,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,686 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:34,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:34,687 INFO L82 PathProgramCache]: Analyzing trace with hash 810217870, now seen corresponding path program 1 times [2020-07-21 12:53:34,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:34,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685701137] [2020-07-21 12:53:34,688 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 12:53:34,910 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:34,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:34,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:34,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:35,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:53:35,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685701137] [2020-07-21 12:53:35,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:35,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 12:53:35,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205766406] [2020-07-21 12:53:35,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 12:53:35,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:35,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 12:53:35,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 12:53:35,365 INFO L87 Difference]: Start difference. First operand 534 states and 632 transitions. Second operand 12 states. [2020-07-21 12:53:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:36,978 INFO L93 Difference]: Finished difference Result 1390 states and 1765 transitions. [2020-07-21 12:53:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 12:53:36,979 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2020-07-21 12:53:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:36,985 INFO L225 Difference]: With dead ends: 1390 [2020-07-21 12:53:36,986 INFO L226 Difference]: Without dead ends: 880 [2020-07-21 12:53:36,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 286 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 12:53:36,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-07-21 12:53:37,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 702. [2020-07-21 12:53:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-07-21 12:53:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 822 transitions. [2020-07-21 12:53:37,045 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 822 transitions. Word has length 149 [2020-07-21 12:53:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:37,046 INFO L479 AbstractCegarLoop]: Abstraction has 702 states and 822 transitions. [2020-07-21 12:53:37,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 12:53:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 822 transitions. [2020-07-21 12:53:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-21 12:53:37,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:37,053 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:37,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:37,267 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:37,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1478344098, now seen corresponding path program 1 times [2020-07-21 12:53:37,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:37,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564052588] [2020-07-21 12:53:37,269 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:37,597 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:37,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:37,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:37,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-07-21 12:53:37,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:37,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564052588] [2020-07-21 12:53:37,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:37,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:37,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743360756] [2020-07-21 12:53:37,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:37,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:37,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:37,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:37,696 INFO L87 Difference]: Start difference. First operand 702 states and 822 transitions. Second operand 6 states. [2020-07-21 12:53:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:37,903 INFO L93 Difference]: Finished difference Result 713 states and 835 transitions. [2020-07-21 12:53:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:37,904 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2020-07-21 12:53:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:37,908 INFO L225 Difference]: With dead ends: 713 [2020-07-21 12:53:37,909 INFO L226 Difference]: Without dead ends: 710 [2020-07-21 12:53:37,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 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 12:53:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2020-07-21 12:53:37,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 702. [2020-07-21 12:53:37,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-07-21 12:53:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 820 transitions. [2020-07-21 12:53:37,969 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 820 transitions. Word has length 203 [2020-07-21 12:53:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:37,972 INFO L479 AbstractCegarLoop]: Abstraction has 702 states and 820 transitions. [2020-07-21 12:53:37,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 820 transitions. [2020-07-21 12:53:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-21 12:53:37,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:37,977 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 12:53:38,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:38,191 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:38,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:38,191 INFO L82 PathProgramCache]: Analyzing trace with hash 700598337, now seen corresponding path program 1 times [2020-07-21 12:53:38,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:38,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796999725] [2020-07-21 12:53:38,192 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:38,512 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:38,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:38,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:53:38,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:38,605 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:38,606 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 12:53:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 94 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 12:53:38,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:38,944 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:38,999 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:38,999 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:39,087 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:39,087 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:39,103 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:39,104 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:39,142 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 12:53:39,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796999725] [2020-07-21 12:53:39,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:39,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-21 12:53:39,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698644773] [2020-07-21 12:53:39,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 12:53:39,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 12:53:39,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-21 12:53:39,378 INFO L87 Difference]: Start difference. First operand 702 states and 820 transitions. Second operand 16 states. [2020-07-21 12:53:41,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:41,332 INFO L93 Difference]: Finished difference Result 1703 states and 2152 transitions. [2020-07-21 12:53:41,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 12:53:41,333 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 207 [2020-07-21 12:53:41,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:41,341 INFO L225 Difference]: With dead ends: 1703 [2020-07-21 12:53:41,341 INFO L226 Difference]: Without dead ends: 1071 [2020-07-21 12:53:41,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 404 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-07-21 12:53:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2020-07-21 12:53:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 838. [2020-07-21 12:53:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-07-21 12:53:41,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 979 transitions. [2020-07-21 12:53:41,402 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 979 transitions. Word has length 207 [2020-07-21 12:53:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:41,404 INFO L479 AbstractCegarLoop]: Abstraction has 838 states and 979 transitions. [2020-07-21 12:53:41,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 12:53:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 979 transitions. [2020-07-21 12:53:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-21 12:53:41,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:41,409 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 12:53:41,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:41,623 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:41,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1257976449, now seen corresponding path program 1 times [2020-07-21 12:53:41,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:41,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870480718] [2020-07-21 12:53:41,625 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:41,876 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:41,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:41,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:53:41,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 12:53:41,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:41,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870480718] [2020-07-21 12:53:41,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:41,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:41,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513469877] [2020-07-21 12:53:41,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:41,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:41,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:41,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:41,940 INFO L87 Difference]: Start difference. First operand 838 states and 979 transitions. Second operand 6 states. [2020-07-21 12:53:41,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:41,977 INFO L93 Difference]: Finished difference Result 1128 states and 1313 transitions. [2020-07-21 12:53:41,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:41,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2020-07-21 12:53:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:41,980 INFO L225 Difference]: With dead ends: 1128 [2020-07-21 12:53:41,980 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:53:41,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 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 12:53:41,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:53:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:53:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:53:41,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:53:41,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-07-21 12:53:41,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:41,985 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:53:41,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:53:41,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:53:42,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:42,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:53:43,546 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-07-21 12:53:44,169 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 26 [2020-07-21 12:53:44,618 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 28 [2020-07-21 12:53:45,413 INFO L268 CegarLoopResult]: For program point L123(lines 123 127) no Hoare annotation was computed. [2020-07-21 12:53:45,413 INFO L268 CegarLoopResult]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point L139(lines 116 140) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point L193-1(line 193) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2020-07-21 12:53:45,414 INFO L268 CegarLoopResult]: For program point L180(lines 180 184) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L268 CegarLoopResult]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L268 CegarLoopResult]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L268 CegarLoopResult]: For program point L200(lines 173 201) no Hoare annotation was computed. [2020-07-21 12:53:45,415 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 674 680) the Hoare annotation is: true [2020-07-21 12:53:45,416 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 674 680) no Hoare annotation was computed. [2020-07-21 12:53:45,416 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 681 689) no Hoare annotation was computed. [2020-07-21 12:53:45,416 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 681 689) the Hoare annotation is: true [2020-07-21 12:53:45,416 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 681 689) no Hoare annotation was computed. [2020-07-21 12:53:45,416 INFO L268 CegarLoopResult]: For program point L417(lines 417 430) no Hoare annotation was computed. [2020-07-21 12:53:45,416 INFO L268 CegarLoopResult]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2020-07-21 12:53:45,416 INFO L271 CegarLoopResult]: At program point L415(line 415) the Hoare annotation is: true [2020-07-21 12:53:45,416 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2020-07-21 12:53:45,417 INFO L268 CegarLoopResult]: For program point L415-1(line 415) no Hoare annotation was computed. [2020-07-21 12:53:45,417 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2020-07-21 12:53:45,417 INFO L264 CegarLoopResult]: At program point L423(line 423) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0))) (or .cse0 (not (<= 2 ~waterLevel~0))))) [2020-07-21 12:53:45,417 INFO L268 CegarLoopResult]: For program point L421(lines 421 427) no Hoare annotation was computed. [2020-07-21 12:53:45,417 INFO L264 CegarLoopResult]: At program point L419(line 419) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0))) (or .cse0 (not (<= 2 ~waterLevel~0))))) [2020-07-21 12:53:45,417 INFO L268 CegarLoopResult]: For program point L419-1(line 419) no Hoare annotation was computed. [2020-07-21 12:53:45,417 INFO L268 CegarLoopResult]: For program point L642-1(lines 642 649) no Hoare annotation was computed. [2020-07-21 12:53:45,417 INFO L268 CegarLoopResult]: For program point L640(line 640) no Hoare annotation was computed. [2020-07-21 12:53:45,418 INFO L264 CegarLoopResult]: At program point L639(line 639) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,418 INFO L264 CegarLoopResult]: At program point L638(line 638) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,418 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 632 654) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,418 INFO L264 CegarLoopResult]: At program point L638-1(line 638) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,418 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 632 654) no Hoare annotation was computed. [2020-07-21 12:53:45,418 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 632 654) no Hoare annotation was computed. [2020-07-21 12:53:45,419 INFO L264 CegarLoopResult]: At program point L644(line 644) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,419 INFO L264 CegarLoopResult]: At program point L644-1(line 644) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,419 INFO L268 CegarLoopResult]: For program point L642(lines 642 649) no Hoare annotation was computed. [2020-07-21 12:53:45,419 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 587 610) no Hoare annotation was computed. [2020-07-21 12:53:45,419 INFO L268 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-07-21 12:53:45,419 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 587 610) no Hoare annotation was computed. [2020-07-21 12:53:45,419 INFO L268 CegarLoopResult]: For program point L604(line 604) no Hoare annotation was computed. [2020-07-21 12:53:45,419 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 587 610) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L603(line 603) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L601(line 601) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L600(line 600) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 12:53:45,420 INFO L268 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-07-21 12:53:45,421 INFO L268 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-07-21 12:53:45,421 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 12:53:45,421 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 825 833) no Hoare annotation was computed. [2020-07-21 12:53:45,421 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 825 833) the Hoare annotation is: true [2020-07-21 12:53:45,421 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 825 833) no Hoare annotation was computed. [2020-07-21 12:53:45,421 INFO L271 CegarLoopResult]: At program point L896(line 896) the Hoare annotation is: true [2020-07-21 12:53:45,421 INFO L268 CegarLoopResult]: For program point L898-2(lines 898 902) no Hoare annotation was computed. [2020-07-21 12:53:45,421 INFO L268 CegarLoopResult]: For program point L896-1(line 896) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 889 907) the Hoare annotation is: true [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 889 907) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point L898(lines 898 902) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 889 907) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point L864(line 864) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point L864-1(line 864) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point L853(lines 853 861) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point L853-2(lines 853 861) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 834 869) no Hoare annotation was computed. [2020-07-21 12:53:45,422 INFO L268 CegarLoopResult]: For program point L841(lines 841 849) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point L841-2(lines 841 849) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 834 869) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 834 869) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 667 673) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 667 673) the Hoare annotation is: true [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2020-07-21 12:53:45,423 INFO L268 CegarLoopResult]: For program point L379(lines 379 386) no Hoare annotation was computed. [2020-07-21 12:53:45,424 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2020-07-21 12:53:45,424 INFO L268 CegarLoopResult]: For program point L373(lines 373 393) no Hoare annotation was computed. [2020-07-21 12:53:45,424 INFO L268 CegarLoopResult]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2020-07-21 12:53:45,424 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2020-07-21 12:53:45,424 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2020-07-21 12:53:45,424 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 619 628) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,424 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 619 628) no Hoare annotation was computed. [2020-07-21 12:53:45,425 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 619 628) no Hoare annotation was computed. [2020-07-21 12:53:45,425 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 814 824) the Hoare annotation is: true [2020-07-21 12:53:45,425 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 814 824) no Hoare annotation was computed. [2020-07-21 12:53:45,425 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 814 824) no Hoare annotation was computed. [2020-07-21 12:53:45,425 INFO L271 CegarLoopResult]: At program point L819(line 819) the Hoare annotation is: true [2020-07-21 12:53:45,425 INFO L268 CegarLoopResult]: For program point L819-1(line 819) no Hoare annotation was computed. [2020-07-21 12:53:45,425 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 806 813) the Hoare annotation is: (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-21 12:53:45,425 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 806 813) no Hoare annotation was computed. [2020-07-21 12:53:45,425 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 806 813) no Hoare annotation was computed. [2020-07-21 12:53:45,426 INFO L268 CegarLoopResult]: For program point L534(lines 534 540) no Hoare annotation was computed. [2020-07-21 12:53:45,426 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 530 543) no Hoare annotation was computed. [2020-07-21 12:53:45,426 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 530 543) the Hoare annotation is: true [2020-07-21 12:53:45,426 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 530 543) no Hoare annotation was computed. [2020-07-21 12:53:45,426 INFO L264 CegarLoopResult]: At program point L769(line 769) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0))) [2020-07-21 12:53:45,426 INFO L264 CegarLoopResult]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~6))))) [2020-07-21 12:53:45,426 INFO L268 CegarLoopResult]: For program point L763(lines 763 771) no Hoare annotation was computed. [2020-07-21 12:53:45,427 INFO L264 CegarLoopResult]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2020-07-21 12:53:45,427 INFO L268 CegarLoopResult]: For program point L761-1(line 761) no Hoare annotation was computed. [2020-07-21 12:53:45,427 INFO L268 CegarLoopResult]: For program point L759(lines 759 776) no Hoare annotation was computed. [2020-07-21 12:53:45,427 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2020-07-21 12:53:45,427 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-21 12:53:45,427 INFO L264 CegarLoopResult]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (= 0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2020-07-21 12:53:45,427 INFO L268 CegarLoopResult]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2020-07-21 12:53:45,427 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2020-07-21 12:53:45,428 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2020-07-21 12:53:45,428 INFO L268 CegarLoopResult]: For program point L929(lines 929 933) no Hoare annotation was computed. [2020-07-21 12:53:45,428 INFO L264 CegarLoopResult]: At program point testENTRY(lines 917 982) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,428 INFO L268 CegarLoopResult]: For program point testFINAL(lines 917 982) no Hoare annotation was computed. [2020-07-21 12:53:45,428 INFO L264 CegarLoopResult]: At program point L975(lines 926 976) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:45,428 INFO L268 CegarLoopResult]: For program point L965(lines 965 969) no Hoare annotation was computed. [2020-07-21 12:53:45,428 INFO L264 CegarLoopResult]: At program point L965-2(lines 957 970) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:45,428 INFO L268 CegarLoopResult]: For program point L928(lines 927 974) no Hoare annotation was computed. [2020-07-21 12:53:45,429 INFO L264 CegarLoopResult]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:45,429 INFO L268 CegarLoopResult]: For program point L957(lines 957 970) no Hoare annotation was computed. [2020-07-21 12:53:45,429 INFO L264 CegarLoopResult]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:45,429 INFO L268 CegarLoopResult]: For program point L947(lines 947 953) no Hoare annotation was computed. [2020-07-21 12:53:45,429 INFO L268 CegarLoopResult]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2020-07-21 12:53:45,429 INFO L264 CegarLoopResult]: At program point L972(lines 927 974) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:45,429 INFO L264 CegarLoopResult]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:45,429 INFO L268 CegarLoopResult]: For program point L937(lines 937 943) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point testEXIT(lines 917 982) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point L333(lines 333 340) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point L327(lines 327 347) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2020-07-21 12:53:45,430 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 780 787) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:45,430 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 780 787) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 780 787) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 544 552) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 544 552) the Hoare annotation is: true [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 544 552) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point L506(lines 506 514) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 498 520) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point L506-2(lines 506 514) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 498 520) no Hoare annotation was computed. [2020-07-21 12:53:45,431 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 498 520) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L256(lines 256 297) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L275(line 275) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L275-1(line 275) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L234(lines 234 238) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L298(lines 298 309) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L261(lines 261 265) no Hoare annotation was computed. [2020-07-21 12:53:45,432 INFO L268 CegarLoopResult]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point L280(lines 258 281) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point L239(lines 239 255) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point L299(lines 299 306) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point L260(lines 259 279) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point L291(line 291) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point L291-1(line 291) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 657 666) no Hoare annotation was computed. [2020-07-21 12:53:45,433 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 657 666) no Hoare annotation was computed. [2020-07-21 12:53:45,434 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 657 666) no Hoare annotation was computed. [2020-07-21 12:53:45,434 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,434 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)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:53:45,434 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,434 INFO L264 CegarLoopResult]: At program point L800(line 800) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:45,434 INFO L268 CegarLoopResult]: For program point L800-1(lines 789 805) no Hoare annotation was computed. [2020-07-21 12:53:45,434 INFO L268 CegarLoopResult]: For program point L796(lines 796 802) no Hoare annotation was computed. [2020-07-21 12:53:45,434 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 789 805) no Hoare annotation was computed. [2020-07-21 12:53:45,434 INFO L264 CegarLoopResult]: At program point L794(line 794) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point L794-1(line 794) no Hoare annotation was computed. [2020-07-21 12:53:45,435 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 789 805) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:45,435 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 521 529) the Hoare annotation is: true [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 521 529) no Hoare annotation was computed. [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 521 529) no Hoare annotation was computed. [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 870 888) no Hoare annotation was computed. [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point L879(lines 879 883) no Hoare annotation was computed. [2020-07-21 12:53:45,435 INFO L271 CegarLoopResult]: At program point L877(line 877) the Hoare annotation is: true [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point L879-2(lines 879 883) no Hoare annotation was computed. [2020-07-21 12:53:45,435 INFO L268 CegarLoopResult]: For program point L877-1(line 877) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 870 888) the Hoare annotation is: true [2020-07-21 12:53:45,436 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 870 888) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L268 CegarLoopResult]: For program point L481-1(lines 477 488) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 477 488) the Hoare annotation is: true [2020-07-21 12:53:45,436 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 477 488) no Hoare annotation was computed. [2020-07-21 12:53:45,436 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 489 497) the Hoare annotation is: true [2020-07-21 12:53:45,437 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 489 497) no Hoare annotation was computed. [2020-07-21 12:53:45,437 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 489 497) no Hoare annotation was computed. [2020-07-21 12:53:45,437 INFO L264 CegarLoopResult]: At program point L703(line 703) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:53:45,437 INFO L268 CegarLoopResult]: For program point L701(lines 700 719) no Hoare annotation was computed. [2020-07-21 12:53:45,437 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2)) (or .cse0 (and .cse1 (= 0 ~pumpRunning~0) .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:53:45,437 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2020-07-21 12:53:45,437 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2020-07-21 12:53:45,437 INFO L264 CegarLoopResult]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (and .cse1 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:53:45,438 INFO L264 CegarLoopResult]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not .cse6)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= 0 ~pumpRunning~0)) (.cse2 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4)) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse5 (<= ~waterLevel~0 1) .cse4) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse6 .cse0 (and .cse3 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse5) .cse2)))) [2020-07-21 12:53:45,438 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 12:53:45,438 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 556 585) no Hoare annotation was computed. [2020-07-21 12:53:45,438 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 556 585) the Hoare annotation is: true [2020-07-21 12:53:45,438 INFO L268 CegarLoopResult]: For program point L570(lines 570 574) no Hoare annotation was computed. [2020-07-21 12:53:45,438 INFO L271 CegarLoopResult]: At program point L570-1(lines 570 574) the Hoare annotation is: true [2020-07-21 12:53:45,438 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-07-21 12:53:45,438 INFO L271 CegarLoopResult]: At program point L566-2(lines 566 580) the Hoare annotation is: true [2020-07-21 12:53:45,439 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-07-21 12:53:45,439 INFO L268 CegarLoopResult]: For program point L562-1(line 562) no Hoare annotation was computed. [2020-07-21 12:53:45,439 INFO L271 CegarLoopResult]: At program point L581(lines 556 585) the Hoare annotation is: true [2020-07-21 12:53:45,439 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 453 464) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-21 12:53:45,439 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 453 464) no Hoare annotation was computed. [2020-07-21 12:53:45,439 INFO L268 CegarLoopResult]: For program point L457-1(lines 453 464) no Hoare annotation was computed. [2020-07-21 12:53:45,439 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 611 617) no Hoare annotation was computed. [2020-07-21 12:53:45,439 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 611 617) the Hoare annotation is: true [2020-07-21 12:53:45,439 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,440 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:53:45,440 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:53:45,440 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:45,440 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 908 915) no Hoare annotation was computed. [2020-07-21 12:53:45,440 INFO L264 CegarLoopResult]: At program point startSystemENTRY(lines 908 915) the Hoare annotation is: (let ((.cse0 (<= 1 ~systemActive~0)) (.cse1 (not (<= 1 |old(~systemActive~0)|)))) (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0)) .cse0 .cse1) (or (not (<= 2 ~waterLevel~0)) .cse0 .cse1))) [2020-07-21 12:53:45,440 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 908 915) no Hoare annotation was computed. [2020-07-21 12:53:45,440 INFO L268 CegarLoopResult]: For program point L737(lines 737 745) no Hoare annotation was computed. [2020-07-21 12:53:45,440 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:45,440 INFO L264 CegarLoopResult]: At program point L735(line 735) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:45,441 INFO L268 CegarLoopResult]: For program point L735-1(line 735) no Hoare annotation was computed. [2020-07-21 12:53:45,441 INFO L268 CegarLoopResult]: For program point L733(lines 733 750) no Hoare annotation was computed. [2020-07-21 12:53:45,441 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2020-07-21 12:53:45,441 INFO L264 CegarLoopResult]: At program point L748(line 748) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:45,441 INFO L268 CegarLoopResult]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2020-07-21 12:53:45,441 INFO L264 CegarLoopResult]: At program point L743(line 743) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= 0 ~pumpRunning~0))) [2020-07-21 12:53:45,441 INFO L264 CegarLoopResult]: At program point L739(line 739) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:45,441 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 465 476) no Hoare annotation was computed. [2020-07-21 12:53:45,441 INFO L268 CegarLoopResult]: For program point L469-1(lines 465 476) no Hoare annotation was computed. [2020-07-21 12:53:45,442 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 465 476) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1))) [2020-07-21 12:53:45,442 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 435 442) no Hoare annotation was computed. [2020-07-21 12:53:45,442 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-21 12:53:45,442 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 435 442) the Hoare annotation is: true [2020-07-21 12:53:45,442 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 435 442) no Hoare annotation was computed. [2020-07-21 12:53:45,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:53:45 BoogieIcfgContainer [2020-07-21 12:53:45,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:53:45,460 INFO L168 Benchmark]: Toolchain (without parser) took 20144.06 ms. Allocated memory was 145.8 MB in the beginning and 471.9 MB in the end (delta: 326.1 MB). Free memory was 100.8 MB in the beginning and 270.3 MB in the end (delta: -169.4 MB). Peak memory consumption was 306.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:45,461 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:53:45,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.17 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 170.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:45,462 INFO L168 Benchmark]: Boogie Preprocessor took 95.03 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:45,463 INFO L168 Benchmark]: RCFGBuilder took 1094.06 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.6 MB in the beginning and 189.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:45,463 INFO L168 Benchmark]: TraceAbstraction took 18251.22 ms. Allocated memory was 234.9 MB in the beginning and 471.9 MB in the end (delta: 237.0 MB). Free memory was 189.0 MB in the beginning and 270.3 MB in the end (delta: -81.2 MB). Peak memory consumption was 305.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:45,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.17 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 170.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.03 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1094.06 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.6 MB in the beginning and 189.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18251.22 ms. Allocated memory was 234.9 MB in the beginning and 471.9 MB in the end (delta: 237.0 MB). Free memory was 189.0 MB in the beginning and 270.3 MB in the end (delta: -81.2 MB). Peak memory consumption was 305.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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: 926]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || (((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.9s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2279 SDtfs, 1837 SDslu, 4570 SDs, 0 SdLazy, 3848 SolverSat, 1009 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2013 GetRequests, 1918 SyntacticMatches, 7 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=838occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 453 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 1702 PreInvPairs, 1755 NumberOfFragments, 1096 HoareAnnotationTreeSize, 1702 FomulaSimplifications, 5619 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 66 FomulaSimplificationsInter, 5366 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1625 NumberOfCodeBlocks, 1553 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1966 ConstructedInterpolants, 0 QuantifiedInterpolants, 490794 SizeOfPredicates, 44 NumberOfNonLiveVariables, 10704 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 531/586 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...