/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 10:27:43,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 10:27:43,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 10:27:43,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 10:27:43,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 10:27:43,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 10:27:43,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 10:27:43,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 10:27:43,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 10:27:43,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 10:27:43,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 10:27:43,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 10:27:43,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 10:27:43,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 10:27:43,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 10:27:43,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 10:27:43,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 10:27:43,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 10:27:43,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 10:27:43,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 10:27:43,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 10:27:43,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 10:27:43,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 10:27:43,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 10:27:43,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 10:27:43,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 10:27:43,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 10:27:43,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 10:27:43,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 10:27:43,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 10:27:43,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 10:27:43,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 10:27:43,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 10:27:43,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 10:27:43,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 10:27:43,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 10:27:43,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 10:27:43,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 10:27:43,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 10:27:43,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 10:27:43,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 10:27:43,373 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 [2020-08-18 10:27:43,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 10:27:43,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 10:27:43,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 10:27:43,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 10:27:43,397 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 10:27:43,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 10:27:43,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 10:27:43,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 10:27:43,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 10:27:43,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 10:27:43,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 10:27:43,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 10:27:43,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 10:27:43,399 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 10:27:43,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 10:27:43,399 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 10:27:43,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 10:27:43,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 10:27:43,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 10:27:43,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 10:27:43,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 10:27:43,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 10:27:43,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 10:27:43,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 10:27:43,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 10:27:43,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 10:27:43,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 10:27:43,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 10:27:43,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 10:27:43,402 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 -> false [2020-08-18 10:27:43,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 10:27:43,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 10:27:43,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 10:27:43,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 10:27:43,694 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 10:27:43,694 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-18 10:27:43,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f1bfdf2c/8ad860cc90e645cc91aac7d2d62dba87/FLAGdb88ed43c [2020-08-18 10:27:44,317 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 10:27:44,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-18 10:27:44,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f1bfdf2c/8ad860cc90e645cc91aac7d2d62dba87/FLAGdb88ed43c [2020-08-18 10:27:44,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f1bfdf2c/8ad860cc90e645cc91aac7d2d62dba87 [2020-08-18 10:27:44,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 10:27:44,616 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 10:27:44,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 10:27:44,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 10:27:44,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 10:27:44,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:27:44" (1/1) ... [2020-08-18 10:27:44,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fb46f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:44, skipping insertion in model container [2020-08-18 10:27:44,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:27:44" (1/1) ... [2020-08-18 10:27:44,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 10:27:44,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 10:27:45,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 10:27:45,126 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 10:27:45,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 10:27:45,282 INFO L208 MainTranslator]: Completed translation [2020-08-18 10:27:45,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45 WrapperNode [2020-08-18 10:27:45,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 10:27:45,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 10:27:45,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 10:27:45,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 10:27:45,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (1/1) ... [2020-08-18 10:27:45,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 10:27:45,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 10:27:45,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 10:27:45,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 10:27:45,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (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 [2020-08-18 10:27:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 10:27:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 10:27:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 10:27:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 10:27:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 10:27:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 10:27:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 10:27:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 10:27:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 10:27:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 10:27:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 10:27:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 10:27:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 10:27:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 10:27:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 10:27:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 10:27:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 10:27:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 10:27:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 10:27:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 10:27:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 10:27:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 10:27:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 10:27:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 10:27:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 10:27:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 10:27:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 10:27:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 10:27:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 10:27:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-18 10:27:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 10:27:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 10:27:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 10:27:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 10:27:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 10:27:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 10:27:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 10:27:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 10:27:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 10:27:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 10:27:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 10:27:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 10:27:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 10:27:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 10:27:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 10:27:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 10:27:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-18 10:27:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 10:27:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 10:27:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 10:27:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 10:27:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 10:27:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 10:27:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 10:27:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 10:27:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 10:27:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 10:27:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 10:27:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 10:27:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 10:27:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 10:27:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 10:27:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 10:27:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 10:27:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 10:27:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 10:27:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 10:27:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 10:27:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 10:27:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 10:27:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 10:27:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-18 10:27:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 10:27:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 10:27:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 10:27:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 10:27:46,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 10:27:46,669 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 10:27:46,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:27:46 BoogieIcfgContainer [2020-08-18 10:27:46,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 10:27:46,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 10:27:46,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 10:27:46,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 10:27:46,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:27:44" (1/3) ... [2020-08-18 10:27:46,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398c7009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:27:46, skipping insertion in model container [2020-08-18 10:27:46,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:27:45" (2/3) ... [2020-08-18 10:27:46,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398c7009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:27:46, skipping insertion in model container [2020-08-18 10:27:46,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:27:46" (3/3) ... [2020-08-18 10:27:46,691 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-08-18 10:27:46,701 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 10:27:46,708 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 10:27:46,718 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 10:27:46,740 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 10:27:46,740 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 10:27:46,740 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 10:27:46,740 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 10:27:46,741 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 10:27:46,741 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 10:27:46,741 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 10:27:46,741 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 10:27:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-08-18 10:27:46,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-18 10:27:46,774 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:27:46,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:27:46,776 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:27:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:27:46,782 INFO L82 PathProgramCache]: Analyzing trace with hash 479094946, now seen corresponding path program 1 times [2020-08-18 10:27:46,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:27:46,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192115678] [2020-08-18 10:27:46,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:27:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,397 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:27:47,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:27:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:27:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:27:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:27:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:27:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:27:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 10:27:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 10:27:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:47,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:27:47,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192115678] [2020-08-18 10:27:47,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:27:47,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 10:27:47,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589890804] [2020-08-18 10:27:47,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 10:27:47,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:27:47,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 10:27:47,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 10:27:47,587 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 4 states. [2020-08-18 10:27:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:27:48,704 INFO L93 Difference]: Finished difference Result 335 states and 423 transitions. [2020-08-18 10:27:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 10:27:48,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-18 10:27:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:27:48,724 INFO L225 Difference]: With dead ends: 335 [2020-08-18 10:27:48,724 INFO L226 Difference]: Without dead ends: 183 [2020-08-18 10:27:48,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 10:27:48,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-18 10:27:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-18 10:27:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-18 10:27:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2020-08-18 10:27:48,835 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 59 [2020-08-18 10:27:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:27:48,835 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2020-08-18 10:27:48,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 10:27:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2020-08-18 10:27:48,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 10:27:48,839 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:27:48,840 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:27:48,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 10:27:48,840 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:27:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:27:48,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1126861649, now seen corresponding path program 1 times [2020-08-18 10:27:48,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:27:48,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207512357] [2020-08-18 10:27:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:27:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,215 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:27:49,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:27:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:27:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:27:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:27:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:27:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 10:27:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 10:27:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 10:27:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:27:49,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207512357] [2020-08-18 10:27:49,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:27:49,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 10:27:49,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869398070] [2020-08-18 10:27:49,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 10:27:49,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:27:49,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 10:27:49,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 10:27:49,326 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 9 states. [2020-08-18 10:27:49,743 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:27:50,096 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:27:50,345 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:27:50,580 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:27:51,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:27:51,957 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2020-08-18 10:27:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 10:27:51,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-18 10:27:51,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:27:51,966 INFO L225 Difference]: With dead ends: 308 [2020-08-18 10:27:51,966 INFO L226 Difference]: Without dead ends: 183 [2020-08-18 10:27:51,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-18 10:27:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-18 10:27:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-18 10:27:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-18 10:27:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2020-08-18 10:27:52,035 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 64 [2020-08-18 10:27:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:27:52,036 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2020-08-18 10:27:52,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 10:27:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2020-08-18 10:27:52,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-18 10:27:52,045 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:27:52,046 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:27:52,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 10:27:52,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:27:52,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:27:52,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1745445590, now seen corresponding path program 1 times [2020-08-18 10:27:52,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:27:52,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107267278] [2020-08-18 10:27:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:27:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,377 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:27:52,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:27:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:27:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:27:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:27:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:27:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 10:27:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 10:27:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:27:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:27:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 10:27:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 10:27:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:27:52,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107267278] [2020-08-18 10:27:52,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:27:52,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 10:27:52,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546798982] [2020-08-18 10:27:52,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 10:27:52,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:27:52,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 10:27:52,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 10:27:52,477 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand 7 states. [2020-08-18 10:27:52,852 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:27:54,395 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:27:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:27:55,191 INFO L93 Difference]: Finished difference Result 445 states and 574 transitions. [2020-08-18 10:27:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 10:27:55,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-18 10:27:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:27:55,197 INFO L225 Difference]: With dead ends: 445 [2020-08-18 10:27:55,197 INFO L226 Difference]: Without dead ends: 320 [2020-08-18 10:27:55,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-18 10:27:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-08-18 10:27:55,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 259. [2020-08-18 10:27:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-08-18 10:27:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2020-08-18 10:27:55,261 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 77 [2020-08-18 10:27:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:27:55,261 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2020-08-18 10:27:55,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 10:27:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2020-08-18 10:27:55,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-18 10:27:55,263 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:27:55,263 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:27:55,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 10:27:55,264 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:27:55,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:27:55,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1775922839, now seen corresponding path program 1 times [2020-08-18 10:27:55,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:27:55,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291271050] [2020-08-18 10:27:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:27:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,542 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:27:55,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:27:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:27:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:27:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:27:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:27:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 10:27:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 10:27:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:27:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:27:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:27:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:27:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 10:27:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 10:27:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 10:27:55,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291271050] [2020-08-18 10:27:55,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:27:55,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 10:27:55,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358101177] [2020-08-18 10:27:55,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 10:27:55,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:27:55,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 10:27:55,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 10:27:55,708 INFO L87 Difference]: Start difference. First operand 259 states and 309 transitions. Second operand 9 states. [2020-08-18 10:27:56,096 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:27:56,713 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:27:57,645 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:27:57,942 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:27:58,344 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:27:58,569 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:27:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:27:59,260 INFO L93 Difference]: Finished difference Result 540 states and 684 transitions. [2020-08-18 10:27:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 10:27:59,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-18 10:27:59,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:27:59,265 INFO L225 Difference]: With dead ends: 540 [2020-08-18 10:27:59,265 INFO L226 Difference]: Without dead ends: 309 [2020-08-18 10:27:59,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-18 10:27:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-18 10:27:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 258. [2020-08-18 10:27:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-18 10:27:59,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 306 transitions. [2020-08-18 10:27:59,322 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 306 transitions. Word has length 91 [2020-08-18 10:27:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:27:59,323 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 306 transitions. [2020-08-18 10:27:59,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 10:27:59,323 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 306 transitions. [2020-08-18 10:27:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-18 10:27:59,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:27:59,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:27:59,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 10:27:59,325 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:27:59,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:27:59,326 INFO L82 PathProgramCache]: Analyzing trace with hash 534241489, now seen corresponding path program 1 times [2020-08-18 10:27:59,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:27:59,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778144521] [2020-08-18 10:27:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:27:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,555 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:27:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:27:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:27:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:27:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:27:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:27:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 10:27:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:27:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 10:27:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:27:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:27:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:27:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:27:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:27:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:27:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:27:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 10:27:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 10:27:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:27:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:27:59,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778144521] [2020-08-18 10:27:59,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:27:59,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 10:27:59,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011966402] [2020-08-18 10:27:59,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 10:27:59,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:27:59,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 10:27:59,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-18 10:27:59,740 INFO L87 Difference]: Start difference. First operand 258 states and 306 transitions. Second operand 10 states. [2020-08-18 10:28:00,319 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:01,000 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:01,256 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 10:28:01,507 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:01,741 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:02,680 INFO L93 Difference]: Finished difference Result 502 states and 624 transitions. [2020-08-18 10:28:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 10:28:02,684 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-18 10:28:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:02,690 INFO L225 Difference]: With dead ends: 502 [2020-08-18 10:28:02,690 INFO L226 Difference]: Without dead ends: 272 [2020-08-18 10:28:02,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2020-08-18 10:28:02,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-08-18 10:28:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-08-18 10:28:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-18 10:28:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 264 transitions. [2020-08-18 10:28:02,751 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 264 transitions. Word has length 103 [2020-08-18 10:28:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:02,752 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 264 transitions. [2020-08-18 10:28:02,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 10:28:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 264 transitions. [2020-08-18 10:28:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-18 10:28:02,753 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:02,753 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:02,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 10:28:02,754 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:02,754 INFO L82 PathProgramCache]: Analyzing trace with hash 697480839, now seen corresponding path program 1 times [2020-08-18 10:28:02,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:02,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839497996] [2020-08-18 10:28:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,034 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:03,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 10:28:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 10:28:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 10:28:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 10:28:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:28:03,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839497996] [2020-08-18 10:28:03,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:28:03,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 10:28:03,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652985816] [2020-08-18 10:28:03,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 10:28:03,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:03,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 10:28:03,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 10:28:03,212 INFO L87 Difference]: Start difference. First operand 233 states and 264 transitions. Second operand 11 states. [2020-08-18 10:28:03,706 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:03,958 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:04,205 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:04,922 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:05,164 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:05,401 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:06,346 INFO L93 Difference]: Finished difference Result 482 states and 584 transitions. [2020-08-18 10:28:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 10:28:06,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-18 10:28:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:06,351 INFO L225 Difference]: With dead ends: 482 [2020-08-18 10:28:06,351 INFO L226 Difference]: Without dead ends: 277 [2020-08-18 10:28:06,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 10:28:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-08-18 10:28:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 237. [2020-08-18 10:28:06,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-08-18 10:28:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 268 transitions. [2020-08-18 10:28:06,392 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 268 transitions. Word has length 107 [2020-08-18 10:28:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:06,393 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 268 transitions. [2020-08-18 10:28:06,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 10:28:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 268 transitions. [2020-08-18 10:28:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-18 10:28:06,394 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:06,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:06,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 10:28:06,395 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:06,395 INFO L82 PathProgramCache]: Analyzing trace with hash 456940710, now seen corresponding path program 1 times [2020-08-18 10:28:06,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:06,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700381336] [2020-08-18 10:28:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,654 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:06,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 10:28:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 10:28:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 10:28:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 10:28:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:28:06,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700381336] [2020-08-18 10:28:06,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:28:06,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 10:28:06,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552022014] [2020-08-18 10:28:06,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 10:28:06,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:06,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 10:28:06,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 10:28:06,810 INFO L87 Difference]: Start difference. First operand 237 states and 268 transitions. Second operand 7 states. [2020-08-18 10:28:07,193 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:07,695 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:09,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:09,362 INFO L93 Difference]: Finished difference Result 651 states and 808 transitions. [2020-08-18 10:28:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 10:28:09,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-18 10:28:09,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:09,366 INFO L225 Difference]: With dead ends: 651 [2020-08-18 10:28:09,366 INFO L226 Difference]: Without dead ends: 442 [2020-08-18 10:28:09,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-18 10:28:09,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-08-18 10:28:09,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 404. [2020-08-18 10:28:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-08-18 10:28:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 472 transitions. [2020-08-18 10:28:09,435 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 472 transitions. Word has length 107 [2020-08-18 10:28:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:09,436 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 472 transitions. [2020-08-18 10:28:09,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 10:28:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 472 transitions. [2020-08-18 10:28:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-18 10:28:09,437 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:09,438 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:09,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 10:28:09,438 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:09,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:09,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1562894580, now seen corresponding path program 1 times [2020-08-18 10:28:09,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:09,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466262606] [2020-08-18 10:28:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,835 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:09,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:28:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:09,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 10:28:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-18 10:28:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-18 10:28:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 10:28:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 10:28:10,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466262606] [2020-08-18 10:28:10,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:28:10,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 10:28:10,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520730612] [2020-08-18 10:28:10,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 10:28:10,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:10,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 10:28:10,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-18 10:28:10,136 INFO L87 Difference]: Start difference. First operand 404 states and 472 transitions. Second operand 12 states. [2020-08-18 10:28:10,813 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:11,435 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:12,411 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:12,717 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:12,968 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:13,228 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:13,481 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:14,743 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:14,996 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:15,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:15,657 INFO L93 Difference]: Finished difference Result 1116 states and 1385 transitions. [2020-08-18 10:28:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-18 10:28:15,658 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-18 10:28:15,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:15,663 INFO L225 Difference]: With dead ends: 1116 [2020-08-18 10:28:15,663 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 10:28:15,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-18 10:28:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 10:28:15,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 700. [2020-08-18 10:28:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-08-18 10:28:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 810 transitions. [2020-08-18 10:28:15,790 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 810 transitions. Word has length 111 [2020-08-18 10:28:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:15,791 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 810 transitions. [2020-08-18 10:28:15,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 10:28:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 810 transitions. [2020-08-18 10:28:15,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-18 10:28:15,794 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:15,794 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:15,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 10:28:15,794 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:15,795 INFO L82 PathProgramCache]: Analyzing trace with hash 903450751, now seen corresponding path program 1 times [2020-08-18 10:28:15,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:15,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786432154] [2020-08-18 10:28:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,120 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:28:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 10:28:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 10:28:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 10:28:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-18 10:28:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-18 10:28:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-08-18 10:28:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-18 10:28:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-18 10:28:16,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786432154] [2020-08-18 10:28:16,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:28:16,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 10:28:16,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628037931] [2020-08-18 10:28:16,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 10:28:16,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:16,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 10:28:16,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-18 10:28:16,444 INFO L87 Difference]: Start difference. First operand 700 states and 810 transitions. Second operand 16 states. [2020-08-18 10:28:17,093 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:17,405 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 10:28:17,654 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 10:28:17,891 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 10:28:18,481 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:18,756 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:19,526 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 10:28:20,205 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:20,653 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 10:28:21,124 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:21,389 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:21,700 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:22,259 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:22,629 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:23,042 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 10:28:23,740 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:24,003 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 10:28:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:24,615 INFO L93 Difference]: Finished difference Result 1513 states and 1807 transitions. [2020-08-18 10:28:24,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-18 10:28:24,615 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 172 [2020-08-18 10:28:24,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:24,621 INFO L225 Difference]: With dead ends: 1513 [2020-08-18 10:28:24,621 INFO L226 Difference]: Without dead ends: 907 [2020-08-18 10:28:24,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=568, Invalid=2084, Unknown=0, NotChecked=0, Total=2652 [2020-08-18 10:28:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-08-18 10:28:24,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 828. [2020-08-18 10:28:24,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2020-08-18 10:28:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 968 transitions. [2020-08-18 10:28:24,791 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 968 transitions. Word has length 172 [2020-08-18 10:28:24,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:24,795 INFO L479 AbstractCegarLoop]: Abstraction has 828 states and 968 transitions. [2020-08-18 10:28:24,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 10:28:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 968 transitions. [2020-08-18 10:28:24,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-18 10:28:24,802 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:24,802 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 10:28:24,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 10:28:24,803 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:24,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:24,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1791991912, now seen corresponding path program 1 times [2020-08-18 10:28:24,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:24,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365253005] [2020-08-18 10:28:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,101 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:25,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:28:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 10:28:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 10:28:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 10:28:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-18 10:28:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 10:28:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-08-18 10:28:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-08-18 10:28:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-08-18 10:28:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-18 10:28:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-08-18 10:28:25,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365253005] [2020-08-18 10:28:25,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:28:25,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-18 10:28:25,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387638855] [2020-08-18 10:28:25,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-18 10:28:25,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:25,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-18 10:28:25,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-18 10:28:25,707 INFO L87 Difference]: Start difference. First operand 828 states and 968 transitions. Second operand 15 states. [2020-08-18 10:28:27,297 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:27,573 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:27,826 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:28,083 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:29,412 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:30,546 INFO L93 Difference]: Finished difference Result 2180 states and 2653 transitions. [2020-08-18 10:28:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-18 10:28:30,549 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 303 [2020-08-18 10:28:30,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:30,556 INFO L225 Difference]: With dead ends: 2180 [2020-08-18 10:28:30,557 INFO L226 Difference]: Without dead ends: 1293 [2020-08-18 10:28:30,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-18 10:28:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2020-08-18 10:28:30,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1090. [2020-08-18 10:28:30,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-08-18 10:28:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1305 transitions. [2020-08-18 10:28:30,757 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1305 transitions. Word has length 303 [2020-08-18 10:28:30,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:30,758 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1305 transitions. [2020-08-18 10:28:30,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-18 10:28:30,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1305 transitions. [2020-08-18 10:28:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-18 10:28:30,764 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:30,765 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:30,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 10:28:30,765 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash -943069261, now seen corresponding path program 1 times [2020-08-18 10:28:30,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:30,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8640426] [2020-08-18 10:28:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,035 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:28:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 10:28:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 10:28:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 10:28:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 10:28:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-08-18 10:28:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 10:28:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-18 10:28:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-18 10:28:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-18 10:28:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-18 10:28:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 85 proven. 38 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-08-18 10:28:31,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8640426] [2020-08-18 10:28:31,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:28:31,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 10:28:31,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192349087] [2020-08-18 10:28:31,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 10:28:31,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:31,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 10:28:31,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-18 10:28:31,460 INFO L87 Difference]: Start difference. First operand 1090 states and 1305 transitions. Second operand 16 states. [2020-08-18 10:28:31,939 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:32,271 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-18 10:28:32,513 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:32,745 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:33,351 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:34,188 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:34,459 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:34,928 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 10:28:35,497 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:36,326 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:36,560 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 10:28:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:37,137 INFO L93 Difference]: Finished difference Result 2070 states and 2513 transitions. [2020-08-18 10:28:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 10:28:37,138 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 309 [2020-08-18 10:28:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:37,145 INFO L225 Difference]: With dead ends: 2070 [2020-08-18 10:28:37,145 INFO L226 Difference]: Without dead ends: 1093 [2020-08-18 10:28:37,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-18 10:28:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-08-18 10:28:37,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1050. [2020-08-18 10:28:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-08-18 10:28:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1239 transitions. [2020-08-18 10:28:37,320 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1239 transitions. Word has length 309 [2020-08-18 10:28:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:37,320 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1239 transitions. [2020-08-18 10:28:37,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 10:28:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1239 transitions. [2020-08-18 10:28:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-18 10:28:37,328 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:37,328 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:37,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 10:28:37,329 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:37,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:37,329 INFO L82 PathProgramCache]: Analyzing trace with hash -828307193, now seen corresponding path program 1 times [2020-08-18 10:28:37,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:37,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586240662] [2020-08-18 10:28:37,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,633 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:28:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 10:28:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 10:28:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 10:28:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 10:28:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-18 10:28:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 10:28:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-18 10:28:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-18 10:28:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-18 10:28:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-18 10:28:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:37,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-18 10:28:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-08-18 10:28:38,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586240662] [2020-08-18 10:28:38,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:28:38,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 10:28:38,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586897675] [2020-08-18 10:28:38,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 10:28:38,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:38,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 10:28:38,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 10:28:38,009 INFO L87 Difference]: Start difference. First operand 1050 states and 1239 transitions. Second operand 11 states. [2020-08-18 10:28:39,972 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:40,215 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 10:28:40,471 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:40,718 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 10:28:41,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:28:41,160 INFO L93 Difference]: Finished difference Result 2022 states and 2422 transitions. [2020-08-18 10:28:41,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 10:28:41,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 314 [2020-08-18 10:28:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:28:41,169 INFO L225 Difference]: With dead ends: 2022 [2020-08-18 10:28:41,170 INFO L226 Difference]: Without dead ends: 1085 [2020-08-18 10:28:41,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-08-18 10:28:41,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-08-18 10:28:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1060. [2020-08-18 10:28:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-08-18 10:28:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1249 transitions. [2020-08-18 10:28:41,411 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1249 transitions. Word has length 314 [2020-08-18 10:28:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:28:41,412 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1249 transitions. [2020-08-18 10:28:41,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 10:28:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1249 transitions. [2020-08-18 10:28:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-18 10:28:41,417 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:28:41,417 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:28:41,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 10:28:41,418 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:28:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:28:41,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1324799625, now seen corresponding path program 1 times [2020-08-18 10:28:41,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:28:41,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335594866] [2020-08-18 10:28:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:28:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,816 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:28:41,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:28:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:28:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:28:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:28:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 10:28:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 10:28:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 10:28:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 10:28:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 10:28:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-18 10:28:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:28:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 10:28:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 10:28:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 10:28:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-18 10:28:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-18 10:28:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:28:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-18 10:28:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 10:28:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 10:28:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:28:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:28:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-18 10:28:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-18 10:28:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:28:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 93 proven. 25 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-08-18 10:28:42,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335594866] [2020-08-18 10:28:42,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:28:42,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 10:28:42,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804997230] [2020-08-18 10:28:42,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 10:28:42,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:28:42,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 10:28:42,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-08-18 10:28:42,341 INFO L87 Difference]: Start difference. First operand 1060 states and 1249 transitions. Second operand 16 states.