/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:59:45,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:59:45,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:59:45,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:59:45,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:59:45,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:59:45,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:59:45,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:59:45,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:59:45,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:59:45,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:59:45,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:59:45,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:59:45,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:59:45,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:59:45,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:59:45,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:59:45,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:59:45,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:59:45,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:59:45,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:59:45,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:59:45,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:59:45,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:59:45,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:59:45,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:59:45,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:59:45,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:59:45,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:59:45,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:59:45,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:59:45,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:59:45,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:59:45,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:59:45,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:59:45,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:59:45,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:59:45,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:59:45,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:59:45,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:59:45,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:59:45,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 13:59:45,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:59:45,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:59:45,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:59:45,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:59:45,343 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:59:45,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:59:45,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:59:45,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:59:45,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:59:45,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:59:45,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:59:45,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:59:45,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:59:45,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:59:45,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:59:45,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:59:45,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:59:45,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:59:45,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:59:45,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:59:45,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:59:45,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:59:45,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:59:45,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:59:45,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:59:45,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:59:45,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:59:45,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:59:45,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:59:45,348 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> log-additional-information=true; [2020-08-21 13:59:45,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:59:45,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:59:45,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:59:45,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:59:45,652 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:59:45,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-08-21 13:59:45,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c17864120/9427fb9ba77945bb9deb05f3f9d74a04/FLAG3dc94d7a6 [2020-08-21 13:59:46,240 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:59:46,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-08-21 13:59:46,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c17864120/9427fb9ba77945bb9deb05f3f9d74a04/FLAG3dc94d7a6 [2020-08-21 13:59:46,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c17864120/9427fb9ba77945bb9deb05f3f9d74a04 [2020-08-21 13:59:46,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:59:46,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:59:46,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:59:46,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:59:46,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:59:46,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:59:46" (1/1) ... [2020-08-21 13:59:46,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d17223b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:46, skipping insertion in model container [2020-08-21 13:59:46,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:59:46" (1/1) ... [2020-08-21 13:59:46,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:59:46,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:59:47,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:59:47,087 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:59:47,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:59:47,258 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:59:47,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47 WrapperNode [2020-08-21 13:59:47,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:59:47,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:59:47,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:59:47,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:59:47,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... [2020-08-21 13:59:47,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:59:47,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:59:47,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:59:47,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:59:47,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 13:59:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:59:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:59:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 13:59:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 13:59:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 13:59:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 13:59:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 13:59:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 13:59:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-21 13:59:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 13:59:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 13:59:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 13:59:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 13:59:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 13:59:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 13:59:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 13:59:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 13:59:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 13:59:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 13:59:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 13:59:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 13:59:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 13:59:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-21 13:59:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 13:59:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 13:59:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 13:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 13:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 13:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 13:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 13:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 13:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 13:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 13:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 13:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 13:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 13:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 13:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 13:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 13:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 13:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-21 13:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 13:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 13:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 13:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 13:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 13:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-21 13:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 13:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 13:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 13:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 13:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 13:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 13:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 13:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 13:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 13:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:59:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:59:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:59:48,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:59:48,454 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 13:59:48,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:59:48 BoogieIcfgContainer [2020-08-21 13:59:48,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:59:48,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:59:48,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:59:48,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:59:48,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:59:46" (1/3) ... [2020-08-21 13:59:48,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f5658e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:59:48, skipping insertion in model container [2020-08-21 13:59:48,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:59:47" (2/3) ... [2020-08-21 13:59:48,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f5658e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:59:48, skipping insertion in model container [2020-08-21 13:59:48,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:59:48" (3/3) ... [2020-08-21 13:59:48,474 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-08-21 13:59:48,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:59:48,496 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:59:48,511 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:59:48,542 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:59:48,542 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:59:48,542 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:59:48,543 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:59:48,543 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:59:48,543 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:59:48,543 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:59:48,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:59:48,566 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-08-21 13:59:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-21 13:59:48,576 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:59:48,577 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] [2020-08-21 13:59:48,577 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:59:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:59:48,584 INFO L82 PathProgramCache]: Analyzing trace with hash 261309835, now seen corresponding path program 1 times [2020-08-21 13:59:48,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:59:48,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938956978] [2020-08-21 13:59:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:59:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,276 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:59:49,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:59:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:59:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:59:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:59:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:59:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 13:59:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 13:59:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:59:49,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938956978] [2020-08-21 13:59:49,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:59:49,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:59:49,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766580251] [2020-08-21 13:59:49,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:59:49,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:59:49,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:59:49,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:59:49,393 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2020-08-21 13:59:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:59:50,519 INFO L93 Difference]: Finished difference Result 309 states and 402 transitions. [2020-08-21 13:59:50,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:59:50,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-21 13:59:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:59:50,537 INFO L225 Difference]: With dead ends: 309 [2020-08-21 13:59:50,537 INFO L226 Difference]: Without dead ends: 167 [2020-08-21 13:59:50,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:59:50,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-08-21 13:59:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2020-08-21 13:59:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-08-21 13:59:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-08-21 13:59:50,640 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 46 [2020-08-21 13:59:50,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:59:50,641 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-08-21 13:59:50,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:59:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-08-21 13:59:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-21 13:59:50,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:59:50,645 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] [2020-08-21 13:59:50,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:59:50,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:59:50,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:59:50,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1021856254, now seen corresponding path program 1 times [2020-08-21 13:59:50,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:59:50,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168119838] [2020-08-21 13:59:50,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:59:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,027 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:59:51,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:59:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:59:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:59:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:59:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:59:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:59:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 13:59:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:59:51,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168119838] [2020-08-21 13:59:51,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:59:51,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:59:51,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474587425] [2020-08-21 13:59:51,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 13:59:51,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:59:51,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 13:59:51,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 13:59:51,073 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 4 states. [2020-08-21 13:59:51,453 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:59:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:59:52,311 INFO L93 Difference]: Finished difference Result 242 states and 293 transitions. [2020-08-21 13:59:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:59:52,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-21 13:59:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:59:52,316 INFO L225 Difference]: With dead ends: 242 [2020-08-21 13:59:52,316 INFO L226 Difference]: Without dead ends: 151 [2020-08-21 13:59:52,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:59:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-08-21 13:59:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 124. [2020-08-21 13:59:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-08-21 13:59:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2020-08-21 13:59:52,355 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 47 [2020-08-21 13:59:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:59:52,356 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2020-08-21 13:59:52,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 13:59:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2020-08-21 13:59:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 13:59:52,358 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:59:52,358 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] [2020-08-21 13:59:52,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:59:52,359 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:59:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:59:52,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1136847733, now seen corresponding path program 1 times [2020-08-21 13:59:52,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:59:52,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106719569] [2020-08-21 13:59:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:59:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,764 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:59:52,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:59:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:59:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:59:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:59:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:59:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 13:59:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 13:59:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:59:52,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106719569] [2020-08-21 13:59:52,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:59:52,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 13:59:52,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552787712] [2020-08-21 13:59:52,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:59:52,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:59:52,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:59:52,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:59:52,852 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 8 states. [2020-08-21 13:59:53,185 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:59:53,471 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:59:53,733 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:59:53,959 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:59:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:59:55,119 INFO L93 Difference]: Finished difference Result 251 states and 307 transitions. [2020-08-21 13:59:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 13:59:55,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-21 13:59:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:59:55,123 INFO L225 Difference]: With dead ends: 251 [2020-08-21 13:59:55,123 INFO L226 Difference]: Without dead ends: 151 [2020-08-21 13:59:55,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:59:55,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-08-21 13:59:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 124. [2020-08-21 13:59:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-08-21 13:59:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2020-08-21 13:59:55,168 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 51 [2020-08-21 13:59:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:59:55,168 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2020-08-21 13:59:55,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:59:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2020-08-21 13:59:55,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-21 13:59:55,171 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:59:55,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:59:55,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:59:55,172 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:59:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:59:55,172 INFO L82 PathProgramCache]: Analyzing trace with hash -629251764, now seen corresponding path program 1 times [2020-08-21 13:59:55,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:59:55,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375412233] [2020-08-21 13:59:55,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:59:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,472 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:59:55,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:59:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:59:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:59:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:59:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:59:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-21 13:59:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 13:59:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 13:59:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 13:59:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 13:59:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:59:55,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375412233] [2020-08-21 13:59:55,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:59:55,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 13:59:55,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150415595] [2020-08-21 13:59:55,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 13:59:55,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:59:55,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 13:59:55,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 13:59:55,568 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 6 states. [2020-08-21 13:59:55,909 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:59:57,111 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:59:57,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:59:57,689 INFO L93 Difference]: Finished difference Result 351 states and 430 transitions. [2020-08-21 13:59:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:59:57,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-08-21 13:59:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:59:57,695 INFO L225 Difference]: With dead ends: 351 [2020-08-21 13:59:57,695 INFO L226 Difference]: Without dead ends: 251 [2020-08-21 13:59:57,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 13:59:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-08-21 13:59:57,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 210. [2020-08-21 13:59:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-08-21 13:59:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 237 transitions. [2020-08-21 13:59:57,744 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 237 transitions. Word has length 64 [2020-08-21 13:59:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:59:57,745 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 237 transitions. [2020-08-21 13:59:57,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 13:59:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 237 transitions. [2020-08-21 13:59:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-21 13:59:57,748 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:59:57,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:59:57,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:59:57,749 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:59:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:59:57,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1171048631, now seen corresponding path program 1 times [2020-08-21 13:59:57,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:59:57,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282851863] [2020-08-21 13:59:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:59:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,054 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:59:58,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:59:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:59:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:59:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:59:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:59:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-21 13:59:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 13:59:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 13:59:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:59:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 13:59:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 13:59:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 13:59:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:59:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:59:58,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282851863] [2020-08-21 13:59:58,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:59:58,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 13:59:58,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114015155] [2020-08-21 13:59:58,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 13:59:58,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:59:58,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 13:59:58,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:59:58,213 INFO L87 Difference]: Start difference. First operand 210 states and 237 transitions. Second operand 12 states. [2020-08-21 13:59:58,628 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:59:58,924 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:59:59,170 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:59:59,415 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:59:59,940 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:00,831 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:01,184 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 14:00:01,434 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 14:00:01,682 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:01,984 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 14:00:02,251 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 14:00:03,606 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:03,978 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:04,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:04,654 INFO L93 Difference]: Finished difference Result 739 states and 942 transitions. [2020-08-21 14:00:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 14:00:04,655 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-08-21 14:00:04,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:04,661 INFO L225 Difference]: With dead ends: 739 [2020-08-21 14:00:04,661 INFO L226 Difference]: Without dead ends: 553 [2020-08-21 14:00:04,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-21 14:00:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-08-21 14:00:04,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 495. [2020-08-21 14:00:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-08-21 14:00:04,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 577 transitions. [2020-08-21 14:00:04,767 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 577 transitions. Word has length 78 [2020-08-21 14:00:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:04,768 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 577 transitions. [2020-08-21 14:00:04,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 14:00:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 577 transitions. [2020-08-21 14:00:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-21 14:00:04,774 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:04,774 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, 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] [2020-08-21 14:00:04,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 14:00:04,775 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:04,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:04,775 INFO L82 PathProgramCache]: Analyzing trace with hash 2053602902, now seen corresponding path program 1 times [2020-08-21 14:00:04,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:04,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973827209] [2020-08-21 14:00:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,042 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 14:00:05,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:00:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:00:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:00:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:00:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:00:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 14:00:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 14:00:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 14:00:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 14:00:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 14:00:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-21 14:00:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-21 14:00:05,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973827209] [2020-08-21 14:00:05,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:00:05,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 14:00:05,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786972078] [2020-08-21 14:00:05,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 14:00:05,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:00:05,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 14:00:05,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-21 14:00:05,287 INFO L87 Difference]: Start difference. First operand 495 states and 577 transitions. Second operand 11 states. [2020-08-21 14:00:05,847 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-21 14:00:06,412 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:08,258 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-21 14:00:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:09,824 INFO L93 Difference]: Finished difference Result 964 states and 1200 transitions. [2020-08-21 14:00:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 14:00:09,825 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-08-21 14:00:09,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:09,831 INFO L225 Difference]: With dead ends: 964 [2020-08-21 14:00:09,831 INFO L226 Difference]: Without dead ends: 610 [2020-08-21 14:00:09,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2020-08-21 14:00:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-08-21 14:00:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 571. [2020-08-21 14:00:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-08-21 14:00:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 684 transitions. [2020-08-21 14:00:09,953 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 684 transitions. Word has length 136 [2020-08-21 14:00:09,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:09,954 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 684 transitions. [2020-08-21 14:00:09,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 14:00:09,954 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 684 transitions. [2020-08-21 14:00:09,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-08-21 14:00:09,957 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:09,958 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, 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] [2020-08-21 14:00:09,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 14:00:09,958 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:09,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:09,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1503231471, now seen corresponding path program 1 times [2020-08-21 14:00:09,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:09,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256875354] [2020-08-21 14:00:09,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,239 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 14:00:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:00:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:00:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:00:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:00:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:00:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 14:00:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:00:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 14:00:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 14:00:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 14:00:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-21 14:00:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-08-21 14:00:10,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256875354] [2020-08-21 14:00:10,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:00:10,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 14:00:10,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660836198] [2020-08-21 14:00:10,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 14:00:10,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:00:10,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 14:00:10,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:00:10,443 INFO L87 Difference]: Start difference. First operand 571 states and 684 transitions. Second operand 10 states. [2020-08-21 14:00:11,321 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:11,575 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 14:00:11,832 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:12,099 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:13,213 INFO L93 Difference]: Finished difference Result 1175 states and 1478 transitions. [2020-08-21 14:00:13,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 14:00:13,215 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 141 [2020-08-21 14:00:13,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:13,220 INFO L225 Difference]: With dead ends: 1175 [2020-08-21 14:00:13,220 INFO L226 Difference]: Without dead ends: 628 [2020-08-21 14:00:13,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-21 14:00:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-08-21 14:00:13,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 586. [2020-08-21 14:00:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-08-21 14:00:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 701 transitions. [2020-08-21 14:00:13,345 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 701 transitions. Word has length 141 [2020-08-21 14:00:13,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:13,346 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 701 transitions. [2020-08-21 14:00:13,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 14:00:13,346 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 701 transitions. [2020-08-21 14:00:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-08-21 14:00:13,349 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:13,350 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, 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] [2020-08-21 14:00:13,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 14:00:13,350 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:13,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1474731181, now seen corresponding path program 1 times [2020-08-21 14:00:13,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:13,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152559937] [2020-08-21 14:00:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,616 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 14:00:13,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:00:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:00:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:00:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:00:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 14:00:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 14:00:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:00:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 14:00:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 14:00:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 14:00:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-21 14:00:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-08-21 14:00:13,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152559937] [2020-08-21 14:00:13,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:00:13,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 14:00:13,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783336357] [2020-08-21 14:00:13,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 14:00:13,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:00:13,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 14:00:13,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-08-21 14:00:13,829 INFO L87 Difference]: Start difference. First operand 586 states and 701 transitions. Second operand 12 states. [2020-08-21 14:00:14,573 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:14,922 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:15,244 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:15,807 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:16,053 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:16,299 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:17,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:17,386 INFO L93 Difference]: Finished difference Result 1061 states and 1310 transitions. [2020-08-21 14:00:17,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 14:00:17,387 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 141 [2020-08-21 14:00:17,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:17,395 INFO L225 Difference]: With dead ends: 1061 [2020-08-21 14:00:17,396 INFO L226 Difference]: Without dead ends: 499 [2020-08-21 14:00:17,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 14:00:17,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-08-21 14:00:17,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 475. [2020-08-21 14:00:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-08-21 14:00:17,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 565 transitions. [2020-08-21 14:00:17,562 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 565 transitions. Word has length 141 [2020-08-21 14:00:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:17,563 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 565 transitions. [2020-08-21 14:00:17,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 14:00:17,563 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 565 transitions. [2020-08-21 14:00:17,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-08-21 14:00:17,565 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:17,565 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, 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] [2020-08-21 14:00:17,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 14:00:17,566 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:17,566 INFO L82 PathProgramCache]: Analyzing trace with hash -339330766, now seen corresponding path program 1 times [2020-08-21 14:00:17,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:17,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748382595] [2020-08-21 14:00:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,835 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 14:00:17,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:00:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:00:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:00:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:00:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:00:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 14:00:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 14:00:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 14:00:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:00:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 14:00:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 14:00:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-21 14:00:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-21 14:00:18,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748382595] [2020-08-21 14:00:18,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:00:18,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-21 14:00:18,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153087777] [2020-08-21 14:00:18,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-21 14:00:18,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:00:18,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-21 14:00:18,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-08-21 14:00:18,131 INFO L87 Difference]: Start difference. First operand 475 states and 565 transitions. Second operand 15 states. [2020-08-21 14:00:18,724 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:19,410 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:20,243 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:20,544 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:20,797 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:21,081 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:21,399 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:21,654 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:22,180 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-08-21 14:00:22,681 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-08-21 14:00:23,535 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:23,765 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:24,036 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:24,272 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:25,002 INFO L93 Difference]: Finished difference Result 1250 states and 1546 transitions. [2020-08-21 14:00:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-21 14:00:25,002 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 145 [2020-08-21 14:00:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:25,011 INFO L225 Difference]: With dead ends: 1250 [2020-08-21 14:00:25,011 INFO L226 Difference]: Without dead ends: 799 [2020-08-21 14:00:25,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=255, Invalid=1005, Unknown=0, NotChecked=0, Total=1260 [2020-08-21 14:00:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2020-08-21 14:00:25,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 760. [2020-08-21 14:00:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2020-08-21 14:00:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 889 transitions. [2020-08-21 14:00:25,149 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 889 transitions. Word has length 145 [2020-08-21 14:00:25,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:25,150 INFO L479 AbstractCegarLoop]: Abstraction has 760 states and 889 transitions. [2020-08-21 14:00:25,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-21 14:00:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 889 transitions. [2020-08-21 14:00:25,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-21 14:00:25,153 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:25,154 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, 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] [2020-08-21 14:00:25,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 14:00:25,154 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:25,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:25,154 INFO L82 PathProgramCache]: Analyzing trace with hash 929993430, now seen corresponding path program 1 times [2020-08-21 14:00:25,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:25,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284844342] [2020-08-21 14:00:25,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,444 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 14:00:25,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:00:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:00:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:00:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:00:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:00:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 14:00:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 14:00:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:00:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 14:00:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-21 14:00:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 14:00:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 14:00:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-21 14:00:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-08-21 14:00:25,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284844342] [2020-08-21 14:00:25,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:00:25,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 14:00:25,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969318269] [2020-08-21 14:00:25,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 14:00:25,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:00:25,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 14:00:25,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-21 14:00:25,602 INFO L87 Difference]: Start difference. First operand 760 states and 889 transitions. Second operand 11 states. [2020-08-21 14:00:25,935 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:27,610 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:27,850 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:28,118 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:28,393 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:28,626 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 14:00:29,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:29,082 INFO L93 Difference]: Finished difference Result 888 states and 1101 transitions. [2020-08-21 14:00:29,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 14:00:29,083 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-08-21 14:00:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:29,089 INFO L225 Difference]: With dead ends: 888 [2020-08-21 14:00:29,089 INFO L226 Difference]: Without dead ends: 885 [2020-08-21 14:00:29,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2020-08-21 14:00:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-08-21 14:00:29,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 760. [2020-08-21 14:00:29,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2020-08-21 14:00:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 886 transitions. [2020-08-21 14:00:29,225 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 886 transitions. Word has length 149 [2020-08-21 14:00:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:29,225 INFO L479 AbstractCegarLoop]: Abstraction has 760 states and 886 transitions. [2020-08-21 14:00:29,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 14:00:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 886 transitions. [2020-08-21 14:00:29,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-21 14:00:29,228 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:29,228 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, 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] [2020-08-21 14:00:29,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 14:00:29,229 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:29,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:29,229 INFO L82 PathProgramCache]: Analyzing trace with hash 432107741, now seen corresponding path program 1 times [2020-08-21 14:00:29,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:29,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095667897] [2020-08-21 14:00:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,575 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 14:00:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:00:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:00:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:00:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:00:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 14:00:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 14:00:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 14:00:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:00:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 14:00:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 14:00:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:00:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:00:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 14:00:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 14:00:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 14:00:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-21 14:00:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:00:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-21 14:00:29,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095667897] [2020-08-21 14:00:29,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:00:29,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 14:00:29,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673172643] [2020-08-21 14:00:29,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 14:00:29,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:00:29,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 14:00:29,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-21 14:00:29,859 INFO L87 Difference]: Start difference. First operand 760 states and 886 transitions. Second operand 12 states. [2020-08-21 14:00:30,333 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:30,871 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:31,680 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:31,966 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:32,234 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:32,468 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 14:00:32,736 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:32,987 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 14:00:34,198 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 14:00:34,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:00:34,950 INFO L93 Difference]: Finished difference Result 1786 states and 2220 transitions. [2020-08-21 14:00:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-21 14:00:34,950 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2020-08-21 14:00:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:00:34,959 INFO L225 Difference]: With dead ends: 1786 [2020-08-21 14:00:34,959 INFO L226 Difference]: Without dead ends: 1168 [2020-08-21 14:00:34,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2020-08-21 14:00:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2020-08-21 14:00:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1022. [2020-08-21 14:00:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2020-08-21 14:00:35,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1207 transitions. [2020-08-21 14:00:35,164 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1207 transitions. Word has length 149 [2020-08-21 14:00:35,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:00:35,164 INFO L479 AbstractCegarLoop]: Abstraction has 1022 states and 1207 transitions. [2020-08-21 14:00:35,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 14:00:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1207 transitions. [2020-08-21 14:00:35,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-08-21 14:00:35,168 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:00:35,169 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:00:35,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 14:00:35,169 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:00:35,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:00:35,169 INFO L82 PathProgramCache]: Analyzing trace with hash -706947900, now seen corresponding path program 2 times [2020-08-21 14:00:35,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:00:35,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560959955] [2020-08-21 14:00:35,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:00:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 14:00:35,256 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 14:00:35,257 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 14:00:35,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 14:00:35,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 02:00:35 BoogieIcfgContainer [2020-08-21 14:00:35,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 14:00:35,313 INFO L168 Benchmark]: Toolchain (without parser) took 48718.70 ms. Allocated memory was 140.0 MB in the beginning and 723.5 MB in the end (delta: 583.5 MB). Free memory was 102.3 MB in the beginning and 422.5 MB in the end (delta: -320.2 MB). Peak memory consumption was 263.3 MB. Max. memory is 7.1 GB. [2020-08-21 14:00:35,316 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 14:00:35,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.22 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 170.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-08-21 14:00:35,318 INFO L168 Benchmark]: Boogie Preprocessor took 87.02 ms. Allocated memory is still 202.9 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-21 14:00:35,321 INFO L168 Benchmark]: RCFGBuilder took 1114.35 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.5 MB in the beginning and 197.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-08-21 14:00:35,325 INFO L168 Benchmark]: TraceAbstraction took 46844.94 ms. Allocated memory was 236.5 MB in the beginning and 723.5 MB in the end (delta: 487.1 MB). Free memory was 195.5 MB in the beginning and 422.5 MB in the end (delta: -227.0 MB). Peak memory consumption was 260.1 MB. Max. memory is 7.1 GB. [2020-08-21 14:00:35,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.22 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 170.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.02 ms. Allocated memory is still 202.9 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1114.35 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.5 MB in the beginning and 197.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46844.94 ms. Allocated memory was 236.5 MB in the beginning and 723.5 MB in the end (delta: 487.1 MB). Free memory was 195.5 MB in the beginning and 422.5 MB in the end (delta: -227.0 MB). Peak memory consumption was 260.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L791] int retValue_acc ; [L792] int tmp ; [L796] FCALL select_helpers() [L797] FCALL select_features() [L798] CALL, EXPR valid_product() [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] return (retValue_acc); [L798] RET, EXPR valid_product() [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) [L802] FCALL setup() [L803] CALL runTest() [L782] CALL test() [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND TRUE \read(tmp) [L66] CALL waterRise() [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 [L66] RET waterRise() [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L97] CALL timeShift() [L125] COND FALSE !(\read(pumpRunning)) [L132] COND TRUE \read(systemActive) [L134] CALL processEnvironment() [L180] int tmp ; [L183] COND FALSE !(\read(pumpRunning)) [L198] CALL processEnvironment__wrappee__methaneQuery() [L154] int tmp ; [L157] COND TRUE ! pumpRunning [L159] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L894] int retValue_acc ; [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L159] RET, EXPR isHighWaterLevel() [L159] tmp = isHighWaterLevel() [L161] COND TRUE \read(tmp) [L163] CALL activatePump() [L213] int tmp ; [L217] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; [L242] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L242] RET, EXPR isMethaneLevelCritical() [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); [L217] RET, EXPR isMethaneAlarm() [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) [L223] CALL activatePump__wrappee__highWaterSensor() [L208] pumpRunning = 1 [L223] RET activatePump__wrappee__highWaterSensor() [L163] RET activatePump() [L198] RET processEnvironment__wrappee__methaneQuery() [L134] RET processEnvironment() [L140] CALL __utac_acc__Specification4_spec__1() [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L695] RET, EXPR getWaterLevel() [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) [L140] RET __utac_acc__Specification4_spec__1() [L97] RET timeShift() [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L97] CALL timeShift() [L125] COND TRUE \read(pumpRunning) [L127] CALL lowerWaterLevel() [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 [L127] RET lowerWaterLevel() [L132] COND TRUE \read(systemActive) [L134] CALL processEnvironment() [L180] int tmp ; [L183] COND TRUE \read(pumpRunning) [L185] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; [L242] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L242] RET, EXPR isMethaneLevelCritical() [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); [L185] RET, EXPR isMethaneAlarm() [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) [L193] CALL processEnvironment__wrappee__methaneQuery() [L154] int tmp ; [L157] COND FALSE !(! pumpRunning) [L172] FCALL processEnvironment__wrappee__base() [L193] RET processEnvironment__wrappee__methaneQuery() [L134] RET processEnvironment() [L140] CALL __utac_acc__Specification4_spec__1() [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L695] RET, EXPR getWaterLevel() [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) [L140] RET __utac_acc__Specification4_spec__1() [L97] RET timeShift() [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L97] CALL timeShift() [L125] COND TRUE \read(pumpRunning) [L127] CALL lowerWaterLevel() [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 [L127] RET lowerWaterLevel() [L132] COND TRUE \read(systemActive) [L134] CALL processEnvironment() [L180] int tmp ; [L183] COND TRUE \read(pumpRunning) [L185] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; [L242] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L242] RET, EXPR isMethaneLevelCritical() [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); [L185] RET, EXPR isMethaneAlarm() [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) [L193] CALL processEnvironment__wrappee__methaneQuery() [L154] int tmp ; [L157] COND FALSE !(! pumpRunning) [L172] FCALL processEnvironment__wrappee__base() [L193] RET processEnvironment__wrappee__methaneQuery() [L134] RET processEnvironment() [L140] CALL __utac_acc__Specification4_spec__1() [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L695] RET, EXPR getWaterLevel() [L695] tmp = getWaterLevel() [L697] COND TRUE tmp == 0 [L699] CALL, EXPR isPumpRunning() [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); [L699] RET, EXPR isPumpRunning() [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) [L703] CALL __automaton_fail() [L317] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 232 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 46.7s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 39.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1431 SDtfs, 4039 SDslu, 1691 SDs, 0 SdLazy, 9641 SolverSat, 2675 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 605 GetRequests, 415 SyntacticMatches, 7 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 19.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1022occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 602 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1347 NumberOfCodeBlocks, 1347 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1136 ConstructedInterpolants, 0 QuantifiedInterpolants, 433066 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 184/214 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...