/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:53:19,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:53:19,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:53:19,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:53:19,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:53:19,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:53:19,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:53:19,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:53:19,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:53:19,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:53:19,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:53:19,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:53:19,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:53:19,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:53:19,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:53:19,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:53:19,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:53:19,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:53:19,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:53:19,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:53:19,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:53:19,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:53:19,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:53:19,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:53:19,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:53:19,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:53:19,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:53:19,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:53:19,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:53:19,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:53:19,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:53:19,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:53:19,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:53:19,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:53:19,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:53:19,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:53:19,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:53:19,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:53:19,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:53:19,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:53:19,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:53:19,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 18:53:19,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:53:19,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:53:19,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:53:19,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:53:19,479 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:53:19,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:53:19,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:53:19,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:53:19,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:53:19,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:53:19,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:53:19,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:53:19,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:53:19,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:53:19,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:53:19,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:53:19,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:53:19,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:53:19,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:53:19,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:53:19,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:53:19,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:53:19,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:53:19,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:53:19,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:53:19,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:53:19,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:53:19,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:53:19,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:53:19,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 18:53:19,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:53:19,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:53:19,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:53:19,848 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:53:19,849 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:53:19,850 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-08-21 18:53:19,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/feb9dc6b6/2fb2a78a48b44bbba801468787774947/FLAG96e4a4745 [2020-08-21 18:53:20,462 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:53:20,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-08-21 18:53:20,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/feb9dc6b6/2fb2a78a48b44bbba801468787774947/FLAG96e4a4745 [2020-08-21 18:53:20,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/feb9dc6b6/2fb2a78a48b44bbba801468787774947 [2020-08-21 18:53:20,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:53:20,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:53:20,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:53:20,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:53:20,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:53:20,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:53:20" (1/1) ... [2020-08-21 18:53:20,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4d4318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:20, skipping insertion in model container [2020-08-21 18:53:20,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:53:20" (1/1) ... [2020-08-21 18:53:20,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:53:20,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:53:21,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:53:21,302 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:53:21,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:53:21,440 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:53:21,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21 WrapperNode [2020-08-21 18:53:21,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:53:21,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:53:21,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:53:21,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:53:21,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... [2020-08-21 18:53:21,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:53:21,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:53:21,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:53:21,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:53:21,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:53:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:53:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:53:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 18:53:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-21 18:53:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-21 18:53:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-21 18:53:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 18:53:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 18:53:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 18:53:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 18:53:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 18:53:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 18:53:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 18:53:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 18:53:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 18:53:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 18:53:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:53:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 18:53:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 18:53:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 18:53:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 18:53:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 18:53:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-21 18:53:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 18:53:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 18:53:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 18:53:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 18:53:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 18:53:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 18:53:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 18:53:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 18:53:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 18:53:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 18:53:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:53:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 18:53:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 18:53:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 18:53:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 18:53:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 18:53:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-21 18:53:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 18:53:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 18:53:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 18:53:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 18:53:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:53:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 18:53:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 18:53:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 18:53:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 18:53:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-21 18:53:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 18:53:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 18:53:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 18:53:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 18:53:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:53:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 18:53:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 18:53:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 18:53:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 18:53:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:53:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 18:53:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:53:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 18:53:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 18:53:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 18:53:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:53:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 18:53:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:53:22,638 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:53:22,639 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 18:53:22,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:53:22 BoogieIcfgContainer [2020-08-21 18:53:22,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:53:22,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:53:22,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:53:22,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:53:22,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:53:20" (1/3) ... [2020-08-21 18:53:22,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221e091f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:53:22, skipping insertion in model container [2020-08-21 18:53:22,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:53:21" (2/3) ... [2020-08-21 18:53:22,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221e091f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:53:22, skipping insertion in model container [2020-08-21 18:53:22,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:53:22" (3/3) ... [2020-08-21 18:53:22,658 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2020-08-21 18:53:22,669 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:53:22,679 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:53:22,695 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:53:22,726 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:53:22,727 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:53:22,727 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:53:22,729 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:53:22,729 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:53:22,729 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:53:22,729 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:53:22,729 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:53:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states. [2020-08-21 18:53:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-21 18:53:22,766 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:22,767 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] [2020-08-21 18:53:22,768 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:22,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1893311162, now seen corresponding path program 1 times [2020-08-21 18:53:22,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:22,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199405428] [2020-08-21 18:53:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,403 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:23,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 18:53:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 18:53:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 18:53:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:23,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199405428] [2020-08-21 18:53:23,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:23,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:53:23,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585249993] [2020-08-21 18:53:23,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:53:23,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:23,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:53:23,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:53:23,593 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 4 states. [2020-08-21 18:53:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:24,899 INFO L93 Difference]: Finished difference Result 372 states and 477 transitions. [2020-08-21 18:53:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 18:53:24,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-21 18:53:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:24,917 INFO L225 Difference]: With dead ends: 372 [2020-08-21 18:53:24,917 INFO L226 Difference]: Without dead ends: 204 [2020-08-21 18:53:24,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:53:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-08-21 18:53:25,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 169. [2020-08-21 18:53:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-08-21 18:53:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2020-08-21 18:53:25,024 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 59 [2020-08-21 18:53:25,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:25,025 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2020-08-21 18:53:25,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:53:25,025 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2020-08-21 18:53:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-21 18:53:25,030 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:25,030 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:53:25,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:53:25,031 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:25,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1978801715, now seen corresponding path program 1 times [2020-08-21 18:53:25,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:25,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308282614] [2020-08-21 18:53:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,417 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:25,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 18:53:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 18:53:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 18:53:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:25,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308282614] [2020-08-21 18:53:25,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:25,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 18:53:25,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229571760] [2020-08-21 18:53:25,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 18:53:25,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:25,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 18:53:25,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:53:25,486 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand 5 states. [2020-08-21 18:53:25,969 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:27,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:27,159 INFO L93 Difference]: Finished difference Result 311 states and 381 transitions. [2020-08-21 18:53:27,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 18:53:27,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-21 18:53:27,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:27,164 INFO L225 Difference]: With dead ends: 311 [2020-08-21 18:53:27,164 INFO L226 Difference]: Without dead ends: 194 [2020-08-21 18:53:27,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:53:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-08-21 18:53:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 160. [2020-08-21 18:53:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-08-21 18:53:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2020-08-21 18:53:27,217 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 60 [2020-08-21 18:53:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:27,218 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 189 transitions. [2020-08-21 18:53:27,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 18:53:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 189 transitions. [2020-08-21 18:53:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-21 18:53:27,221 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:27,222 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] [2020-08-21 18:53:27,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:53:27,222 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:27,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash -532508270, now seen corresponding path program 1 times [2020-08-21 18:53:27,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:27,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616666221] [2020-08-21 18:53:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,586 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 18:53:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 18:53:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 18:53:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:27,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616666221] [2020-08-21 18:53:27,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:27,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 18:53:27,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832200211] [2020-08-21 18:53:27,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 18:53:27,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:27,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 18:53:27,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:53:27,752 INFO L87 Difference]: Start difference. First operand 160 states and 189 transitions. Second operand 9 states. [2020-08-21 18:53:28,090 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:28,417 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:28,661 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:28,891 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:29,781 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:32,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:32,142 INFO L93 Difference]: Finished difference Result 533 states and 661 transitions. [2020-08-21 18:53:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 18:53:32,144 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-21 18:53:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:32,149 INFO L225 Difference]: With dead ends: 533 [2020-08-21 18:53:32,149 INFO L226 Difference]: Without dead ends: 401 [2020-08-21 18:53:32,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-21 18:53:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-08-21 18:53:32,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 340. [2020-08-21 18:53:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-08-21 18:53:32,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 414 transitions. [2020-08-21 18:53:32,243 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 414 transitions. Word has length 64 [2020-08-21 18:53:32,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:32,243 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 414 transitions. [2020-08-21 18:53:32,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 18:53:32,244 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 414 transitions. [2020-08-21 18:53:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-21 18:53:32,247 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:32,247 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] [2020-08-21 18:53:32,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:53:32,247 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:32,248 INFO L82 PathProgramCache]: Analyzing trace with hash 216340368, now seen corresponding path program 1 times [2020-08-21 18:53:32,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:32,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772973002] [2020-08-21 18:53:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,549 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 18:53:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 18:53:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 18:53:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 18:53:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:32,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 18:53:32,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772973002] [2020-08-21 18:53:32,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:32,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 18:53:32,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919876698] [2020-08-21 18:53:32,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 18:53:32,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:32,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 18:53:32,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:53:32,696 INFO L87 Difference]: Start difference. First operand 340 states and 414 transitions. Second operand 9 states. [2020-08-21 18:53:33,079 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:33,702 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:34,782 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:35,028 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:35,337 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:35,618 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:36,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:36,626 INFO L93 Difference]: Finished difference Result 875 states and 1130 transitions. [2020-08-21 18:53:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 18:53:36,627 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-21 18:53:36,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:36,633 INFO L225 Difference]: With dead ends: 875 [2020-08-21 18:53:36,634 INFO L226 Difference]: Without dead ends: 563 [2020-08-21 18:53:36,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-21 18:53:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-08-21 18:53:36,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 499. [2020-08-21 18:53:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-21 18:53:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 597 transitions. [2020-08-21 18:53:36,736 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 597 transitions. Word has length 70 [2020-08-21 18:53:36,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:36,736 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 597 transitions. [2020-08-21 18:53:36,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 18:53:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 597 transitions. [2020-08-21 18:53:36,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-21 18:53:36,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:36,740 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, 1] [2020-08-21 18:53:36,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:53:36,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:36,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:36,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1357993179, now seen corresponding path program 1 times [2020-08-21 18:53:36,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:36,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330900742] [2020-08-21 18:53:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,000 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:37,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 18:53:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 18:53:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:53:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 18:53:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-21 18:53:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:37,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330900742] [2020-08-21 18:53:37,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:37,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 18:53:37,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256434400] [2020-08-21 18:53:37,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 18:53:37,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:37,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 18:53:37,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:53:37,183 INFO L87 Difference]: Start difference. First operand 499 states and 597 transitions. Second operand 9 states. [2020-08-21 18:53:38,225 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:38,487 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 18:53:38,726 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:38,972 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:39,943 INFO L93 Difference]: Finished difference Result 1060 states and 1356 transitions. [2020-08-21 18:53:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 18:53:39,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-08-21 18:53:39,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:39,949 INFO L225 Difference]: With dead ends: 1060 [2020-08-21 18:53:39,949 INFO L226 Difference]: Without dead ends: 589 [2020-08-21 18:53:39,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-21 18:53:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-08-21 18:53:40,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 512. [2020-08-21 18:53:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-08-21 18:53:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 611 transitions. [2020-08-21 18:53:40,050 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 611 transitions. Word has length 112 [2020-08-21 18:53:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:40,051 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 611 transitions. [2020-08-21 18:53:40,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 18:53:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 611 transitions. [2020-08-21 18:53:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-21 18:53:40,053 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:40,054 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, 1] [2020-08-21 18:53:40,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 18:53:40,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:40,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:40,055 INFO L82 PathProgramCache]: Analyzing trace with hash 581168867, now seen corresponding path program 1 times [2020-08-21 18:53:40,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:40,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376643796] [2020-08-21 18:53:40,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,358 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 18:53:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 18:53:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:53:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 18:53:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-21 18:53:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:40,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376643796] [2020-08-21 18:53:40,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:40,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 18:53:40,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778513566] [2020-08-21 18:53:40,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 18:53:40,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:40,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 18:53:40,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 18:53:40,596 INFO L87 Difference]: Start difference. First operand 512 states and 611 transitions. Second operand 11 states. [2020-08-21 18:53:41,111 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:41,360 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:41,602 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:42,411 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:42,711 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:42,960 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:43,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:43,986 INFO L93 Difference]: Finished difference Result 1083 states and 1380 transitions. [2020-08-21 18:53:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 18:53:43,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2020-08-21 18:53:43,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:43,997 INFO L225 Difference]: With dead ends: 1083 [2020-08-21 18:53:43,997 INFO L226 Difference]: Without dead ends: 599 [2020-08-21 18:53:43,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 18:53:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-08-21 18:53:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 520. [2020-08-21 18:53:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-21 18:53:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-21 18:53:44,089 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 112 [2020-08-21 18:53:44,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:44,090 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-21 18:53:44,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 18:53:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-21 18:53:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-21 18:53:44,092 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:44,093 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, 1] [2020-08-21 18:53:44,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 18:53:44,093 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:44,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1350338882, now seen corresponding path program 1 times [2020-08-21 18:53:44,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:44,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232262105] [2020-08-21 18:53:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,430 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:44,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 18:53:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 18:53:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:53:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 18:53:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-21 18:53:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:44,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:44,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232262105] [2020-08-21 18:53:44,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:44,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 18:53:44,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679634806] [2020-08-21 18:53:44,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 18:53:44,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:44,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 18:53:44,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:53:44,643 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 7 states. [2020-08-21 18:53:44,984 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:45,555 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:48,052 INFO L93 Difference]: Finished difference Result 1571 states and 2020 transitions. [2020-08-21 18:53:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 18:53:48,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-08-21 18:53:48,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:48,059 INFO L225 Difference]: With dead ends: 1571 [2020-08-21 18:53:48,059 INFO L226 Difference]: Without dead ends: 1079 [2020-08-21 18:53:48,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-21 18:53:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-08-21 18:53:48,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1005. [2020-08-21 18:53:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-08-21 18:53:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1219 transitions. [2020-08-21 18:53:48,221 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1219 transitions. Word has length 112 [2020-08-21 18:53:48,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:48,221 INFO L479 AbstractCegarLoop]: Abstraction has 1005 states and 1219 transitions. [2020-08-21 18:53:48,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 18:53:48,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1219 transitions. [2020-08-21 18:53:48,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-08-21 18:53:48,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:48,224 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, 1, 1, 1, 1, 1] [2020-08-21 18:53:48,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 18:53:48,225 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:48,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1975342852, now seen corresponding path program 1 times [2020-08-21 18:53:48,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:48,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546790947] [2020-08-21 18:53:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,558 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:48,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 18:53:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 18:53:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 18:53:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:53:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 18:53:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 18:53:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:48,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 18:53:48,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546790947] [2020-08-21 18:53:48,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:53:48,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 18:53:48,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629806786] [2020-08-21 18:53:48,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 18:53:48,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:48,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 18:53:48,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-21 18:53:48,742 INFO L87 Difference]: Start difference. First operand 1005 states and 1219 transitions. Second operand 12 states. [2020-08-21 18:53:49,330 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:50,147 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:50,837 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:51,168 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:51,434 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:53:51,733 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:52,020 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:53:54,420 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:54,743 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:53:55,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:53:55,598 INFO L93 Difference]: Finished difference Result 2851 states and 3676 transitions. [2020-08-21 18:53:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 18:53:55,598 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-08-21 18:53:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:53:55,611 INFO L225 Difference]: With dead ends: 2851 [2020-08-21 18:53:55,612 INFO L226 Difference]: Without dead ends: 2072 [2020-08-21 18:53:55,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-21 18:53:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2020-08-21 18:53:55,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1772. [2020-08-21 18:53:55,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2020-08-21 18:53:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2130 transitions. [2020-08-21 18:53:55,940 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2130 transitions. Word has length 116 [2020-08-21 18:53:55,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:53:55,942 INFO L479 AbstractCegarLoop]: Abstraction has 1772 states and 2130 transitions. [2020-08-21 18:53:55,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 18:53:55,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2130 transitions. [2020-08-21 18:53:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-08-21 18:53:55,947 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:53:55,947 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, 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, 1, 1, 1] [2020-08-21 18:53:55,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 18:53:55,948 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:53:55,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:53:55,948 INFO L82 PathProgramCache]: Analyzing trace with hash -283315442, now seen corresponding path program 1 times [2020-08-21 18:53:55,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:53:55,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585685572] [2020-08-21 18:53:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:53:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,330 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:53:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:53:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:53:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:53:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:53:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 18:53:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 18:53:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 18:53:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:53:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:53:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-21 18:53:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 18:53:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:53:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-21 18:53:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-21 18:53:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 18:53:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:53:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 18:53:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:53:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-08-21 18:53:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-21 18:53:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:53:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-21 18:53:56,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585685572] [2020-08-21 18:53:56,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 18:53:56,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 18:53:56,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062053598] [2020-08-21 18:53:56,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 18:53:56,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:53:56,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 18:53:56,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-21 18:53:56,801 INFO L87 Difference]: Start difference. First operand 1772 states and 2130 transitions. Second operand 16 states. [2020-08-21 18:53:57,539 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:53:58,047 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-21 18:53:58,314 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 18:53:58,569 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 18:53:59,220 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:59,590 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:53:59,999 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 18:54:00,336 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 18:54:01,755 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:54:02,313 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:54:02,616 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:54:02,969 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:54:03,541 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:54:03,967 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:54:04,729 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:54:05,036 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 18:54:05,624 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 18:54:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:54:06,462 INFO L93 Difference]: Finished difference Result 3775 states and 4672 transitions. [2020-08-21 18:54:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-21 18:54:06,468 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 193 [2020-08-21 18:54:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:54:06,481 INFO L225 Difference]: With dead ends: 3775 [2020-08-21 18:54:06,481 INFO L226 Difference]: Without dead ends: 2217 [2020-08-21 18:54:06,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-21 18:54:06,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2020-08-21 18:54:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2039. [2020-08-21 18:54:06,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2039 states. [2020-08-21 18:54:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2400 transitions. [2020-08-21 18:54:06,893 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2400 transitions. Word has length 193 [2020-08-21 18:54:06,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:54:06,897 INFO L479 AbstractCegarLoop]: Abstraction has 2039 states and 2400 transitions. [2020-08-21 18:54:06,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 18:54:06,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2400 transitions. [2020-08-21 18:54:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-08-21 18:54:06,908 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:06,909 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 18:54:06,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 18:54:06,909 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:06,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1594839617, now seen corresponding path program 1 times [2020-08-21 18:54:06,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:06,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622179819] [2020-08-21 18:54:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,255 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:54:07,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:54:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:54:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:54:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:54:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:54:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 18:54:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 18:54:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 18:54:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:54:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:54:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-21 18:54:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 18:54:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:54:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 18:54:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 18:54:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 18:54:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 18:54:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-21 18:54:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:54:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 18:54:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 18:54:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 18:54:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-21 18:54:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-08-21 18:54:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-21 18:54:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:54:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:54:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-08-21 18:54:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-21 18:54:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-08-21 18:54:07,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622179819] [2020-08-21 18:54:07,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 18:54:07,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 18:54:07,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696399311] [2020-08-21 18:54:07,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 18:54:07,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:54:07,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 18:54:07,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-21 18:54:07,778 INFO L87 Difference]: Start difference. First operand 2039 states and 2400 transitions. Second operand 16 states. [2020-08-21 18:54:08,291 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 18:54:09,181 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 18:54:10,957 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:54:11,286 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:54:11,549 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 18:54:11,888 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:54:12,185 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:54:12,456 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 18:54:13,856 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-21 18:54:14,365 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-21 18:54:14,861 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-21 18:54:15,344 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-21 18:54:16,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:54:16,529 INFO L93 Difference]: Finished difference Result 5889 states and 7114 transitions. [2020-08-21 18:54:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-21 18:54:16,536 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 331 [2020-08-21 18:54:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:54:16,558 INFO L225 Difference]: With dead ends: 5889 [2020-08-21 18:54:16,558 INFO L226 Difference]: Without dead ends: 3886 [2020-08-21 18:54:16,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2020-08-21 18:54:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2020-08-21 18:54:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3783. [2020-08-21 18:54:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3783 states. [2020-08-21 18:54:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 4382 transitions. [2020-08-21 18:54:17,315 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 4382 transitions. Word has length 331 [2020-08-21 18:54:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:54:17,319 INFO L479 AbstractCegarLoop]: Abstraction has 3783 states and 4382 transitions. [2020-08-21 18:54:17,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 18:54:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 4382 transitions. [2020-08-21 18:54:17,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-08-21 18:54:17,341 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:17,341 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 18:54:17,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 18:54:17,342 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:17,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash 2050979555, now seen corresponding path program 1 times [2020-08-21 18:54:17,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:17,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965456626] [2020-08-21 18:54:17,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,712 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 18:54:17,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:54:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:54:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:54:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:54:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:54:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 18:54:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 18:54:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 18:54:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:54:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:54:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-21 18:54:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 18:54:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:54:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 18:54:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 18:54:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 18:54:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 18:54:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-21 18:54:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-21 18:54:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:54:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 18:54:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 18:54:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 18:54:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-08-21 18:54:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-21 18:54:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-21 18:54:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:54:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:54:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:18,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:18,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:18,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:54:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:18,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-08-21 18:54:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat