/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 04:33:56,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 04:33:56,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 04:33:56,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 04:33:56,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 04:33:56,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 04:33:56,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 04:33:56,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 04:33:56,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 04:33:56,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 04:33:56,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 04:33:56,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 04:33:56,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 04:33:56,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 04:33:56,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 04:33:56,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 04:33:56,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 04:33:56,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 04:33:56,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 04:33:56,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 04:33:56,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 04:33:56,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 04:33:56,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 04:33:56,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 04:33:56,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 04:33:56,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 04:33:56,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 04:33:56,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 04:33:56,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 04:33:56,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 04:33:56,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 04:33:56,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 04:33:56,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 04:33:56,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 04:33:56,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 04:33:56,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 04:33:56,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 04:33:56,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 04:33:56,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 04:33:56,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 04:33:56,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 04:33:56,404 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 [2020-08-22 04:33:56,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 04:33:56,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 04:33:56,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 04:33:56,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 04:33:56,440 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 04:33:56,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 04:33:56,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 04:33:56,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 04:33:56,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 04:33:56,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 04:33:56,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 04:33:56,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 04:33:56,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 04:33:56,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 04:33:56,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 04:33:56,444 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 04:33:56,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 04:33:56,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 04:33:56,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 04:33:56,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 04:33:56,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 04:33:56,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:33:56,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 04:33:56,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 04:33:56,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 04:33:56,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 04:33:56,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 04:33:56,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 04:33:56,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 04:33:56,447 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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-08-22 04:33:56,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 04:33:56,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 04:33:56,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 04:33:56,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 04:33:56,817 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 04:33:56,818 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-08-22 04:33:56,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cb1b8597/3a3088195430454880c3b0fbe1a5dc72/FLAGa57822bb3 [2020-08-22 04:33:57,467 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 04:33:57,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-08-22 04:33:57,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cb1b8597/3a3088195430454880c3b0fbe1a5dc72/FLAGa57822bb3 [2020-08-22 04:33:57,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cb1b8597/3a3088195430454880c3b0fbe1a5dc72 [2020-08-22 04:33:57,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 04:33:57,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 04:33:57,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 04:33:57,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 04:33:57,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 04:33:57,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:33:57" (1/1) ... [2020-08-22 04:33:57,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eca493f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:57, skipping insertion in model container [2020-08-22 04:33:57,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:33:57" (1/1) ... [2020-08-22 04:33:57,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 04:33:57,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 04:33:58,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:33:58,251 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 04:33:58,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:33:58,385 INFO L208 MainTranslator]: Completed translation [2020-08-22 04:33:58,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58 WrapperNode [2020-08-22 04:33:58,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 04:33:58,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 04:33:58,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 04:33:58,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 04:33:58,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (1/1) ... [2020-08-22 04:33:58,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 04:33:58,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 04:33:58,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 04:33:58,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 04:33:58,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (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 [2020-08-22 04:33:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 04:33:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 04:33:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 04:33:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 04:33:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 04:33:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 04:33:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 04:33:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 04:33:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 04:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 04:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 04:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 04:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 04:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 04:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 04:33:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 04:33:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 04:33:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 04:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 04:33:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 04:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 04:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 04:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 04:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 04:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 04:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 04:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 04:33:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 04:33:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 04:33:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 04:33:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 04:33:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 04:33:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 04:33:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 04:33:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 04:33:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 04:33:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 04:33:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 04:33:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 04:33:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 04:33:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 04:33:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 04:33:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 04:33:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 04:33:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 04:33:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 04:33:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 04:33:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 04:33:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 04:33:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 04:33:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 04:33:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 04:33:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 04:33:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 04:33:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 04:33:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 04:33:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 04:33:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 04:33:59,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 04:33:59,747 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 04:33:59,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:33:59 BoogieIcfgContainer [2020-08-22 04:33:59,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 04:33:59,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 04:33:59,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 04:33:59,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 04:33:59,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:33:57" (1/3) ... [2020-08-22 04:33:59,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1631621f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:33:59, skipping insertion in model container [2020-08-22 04:33:59,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:33:58" (2/3) ... [2020-08-22 04:33:59,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1631621f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:33:59, skipping insertion in model container [2020-08-22 04:33:59,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:33:59" (3/3) ... [2020-08-22 04:33:59,760 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-08-22 04:33:59,770 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 04:33:59,776 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 04:33:59,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 04:33:59,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 04:33:59,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 04:33:59,812 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 04:33:59,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 04:33:59,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 04:33:59,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 04:33:59,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 04:33:59,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 04:33:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-08-22 04:33:59,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 04:33:59,845 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:33:59,846 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] [2020-08-22 04:33:59,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:33:59,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:33:59,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1963515353, now seen corresponding path program 1 times [2020-08-22 04:33:59,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:33:59,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91374800] [2020-08-22 04:33:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,522 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 04:34:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 04:34:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:00,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91374800] [2020-08-22 04:34:00,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:00,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 04:34:00,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906253422] [2020-08-22 04:34:00,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 04:34:00,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:00,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 04:34:00,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 04:34:00,682 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 4 states. [2020-08-22 04:34:01,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:01,786 INFO L93 Difference]: Finished difference Result 276 states and 357 transitions. [2020-08-22 04:34:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 04:34:01,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 04:34:01,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:01,807 INFO L225 Difference]: With dead ends: 276 [2020-08-22 04:34:01,807 INFO L226 Difference]: Without dead ends: 153 [2020-08-22 04:34:01,814 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 [2020-08-22 04:34:01,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-08-22 04:34:01,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 124. [2020-08-22 04:34:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-08-22 04:34:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2020-08-22 04:34:01,966 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 59 [2020-08-22 04:34:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:01,966 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2020-08-22 04:34:01,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 04:34:01,967 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2020-08-22 04:34:01,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 04:34:01,978 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:01,978 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] [2020-08-22 04:34:01,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 04:34:01,979 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:01,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:01,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1851002156, now seen corresponding path program 1 times [2020-08-22 04:34:01,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:01,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139055706] [2020-08-22 04:34:01,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,413 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:34:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 04:34:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:34:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:02,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139055706] [2020-08-22 04:34:02,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:02,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:02,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980859717] [2020-08-22 04:34:02,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:02,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:02,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:02,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:02,546 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 9 states. [2020-08-22 04:34:02,915 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:03,236 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:03,535 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:03,778 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:04,862 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:06,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:06,098 INFO L93 Difference]: Finished difference Result 423 states and 533 transitions. [2020-08-22 04:34:06,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 04:34:06,099 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 04:34:06,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:06,104 INFO L225 Difference]: With dead ends: 423 [2020-08-22 04:34:06,104 INFO L226 Difference]: Without dead ends: 327 [2020-08-22 04:34:06,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:34:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-22 04:34:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 265. [2020-08-22 04:34:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-08-22 04:34:06,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 324 transitions. [2020-08-22 04:34:06,217 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 324 transitions. Word has length 64 [2020-08-22 04:34:06,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:06,218 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 324 transitions. [2020-08-22 04:34:06,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 324 transitions. [2020-08-22 04:34:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-08-22 04:34:06,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:06,225 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] [2020-08-22 04:34:06,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 04:34:06,225 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:06,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:06,226 INFO L82 PathProgramCache]: Analyzing trace with hash 2013051811, now seen corresponding path program 1 times [2020-08-22 04:34:06,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:06,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313996644] [2020-08-22 04:34:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,543 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:06,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:34:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 04:34:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-22 04:34:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-22 04:34:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:06,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313996644] [2020-08-22 04:34:06,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:06,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 04:34:06,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456581941] [2020-08-22 04:34:06,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 04:34:06,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:06,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 04:34:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:34:06,655 INFO L87 Difference]: Start difference. First operand 265 states and 324 transitions. Second operand 7 states. [2020-08-22 04:34:07,018 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:08,409 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:08,974 INFO L93 Difference]: Finished difference Result 782 states and 1053 transitions. [2020-08-22 04:34:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 04:34:08,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2020-08-22 04:34:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:08,982 INFO L225 Difference]: With dead ends: 782 [2020-08-22 04:34:08,983 INFO L226 Difference]: Without dead ends: 545 [2020-08-22 04:34:08,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:34:08,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-08-22 04:34:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 452. [2020-08-22 04:34:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-08-22 04:34:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 561 transitions. [2020-08-22 04:34:09,083 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 561 transitions. Word has length 72 [2020-08-22 04:34:09,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:09,084 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 561 transitions. [2020-08-22 04:34:09,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 04:34:09,084 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 561 transitions. [2020-08-22 04:34:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 04:34:09,086 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:09,086 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] [2020-08-22 04:34:09,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 04:34:09,087 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:09,087 INFO L82 PathProgramCache]: Analyzing trace with hash -601082987, now seen corresponding path program 1 times [2020-08-22 04:34:09,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:09,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363868592] [2020-08-22 04:34:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,402 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:09,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:34:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 04:34:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:34:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 04:34:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 04:34:09,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363868592] [2020-08-22 04:34:09,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:09,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:09,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901966852] [2020-08-22 04:34:09,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:09,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:09,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:09,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:09,535 INFO L87 Difference]: Start difference. First operand 452 states and 561 transitions. Second operand 9 states. [2020-08-22 04:34:09,961 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:10,607 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:11,501 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:11,868 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:12,278 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:12,543 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:13,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:13,124 INFO L93 Difference]: Finished difference Result 948 states and 1227 transitions. [2020-08-22 04:34:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 04:34:13,124 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-22 04:34:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:13,133 INFO L225 Difference]: With dead ends: 948 [2020-08-22 04:34:13,133 INFO L226 Difference]: Without dead ends: 524 [2020-08-22 04:34:13,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 04:34:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-08-22 04:34:13,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 449. [2020-08-22 04:34:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-08-22 04:34:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 552 transitions. [2020-08-22 04:34:13,243 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 552 transitions. Word has length 70 [2020-08-22 04:34:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:13,244 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 552 transitions. [2020-08-22 04:34:13,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:13,244 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 552 transitions. [2020-08-22 04:34:13,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-22 04:34:13,246 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:13,246 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] [2020-08-22 04:34:13,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 04:34:13,246 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:13,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:13,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1418290782, now seen corresponding path program 1 times [2020-08-22 04:34:13,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:13,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811373007] [2020-08-22 04:34:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,510 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:13,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:34:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 04:34:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-22 04:34:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 04:34:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:13,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811373007] [2020-08-22 04:34:13,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:13,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:13,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103776387] [2020-08-22 04:34:13,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:13,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:13,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:13,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:13,647 INFO L87 Difference]: Start difference. First operand 449 states and 552 transitions. Second operand 9 states. [2020-08-22 04:34:14,092 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:15,022 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:15,321 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:15,633 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:15,893 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:17,126 INFO L93 Difference]: Finished difference Result 1360 states and 1888 transitions. [2020-08-22 04:34:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 04:34:17,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-08-22 04:34:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:17,144 INFO L225 Difference]: With dead ends: 1360 [2020-08-22 04:34:17,145 INFO L226 Difference]: Without dead ends: 939 [2020-08-22 04:34:17,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-22 04:34:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-08-22 04:34:17,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 795. [2020-08-22 04:34:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-08-22 04:34:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 992 transitions. [2020-08-22 04:34:17,412 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 992 transitions. Word has length 87 [2020-08-22 04:34:17,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:17,413 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 992 transitions. [2020-08-22 04:34:17,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:17,413 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 992 transitions. [2020-08-22 04:34:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-22 04:34:17,416 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:17,417 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] [2020-08-22 04:34:17,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 04:34:17,417 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:17,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:17,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1655372524, now seen corresponding path program 1 times [2020-08-22 04:34:17,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:17,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98133689] [2020-08-22 04:34:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,669 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:17,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:34:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 04:34:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 04:34:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 04:34:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:17,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98133689] [2020-08-22 04:34:17,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:17,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 04:34:17,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213350429] [2020-08-22 04:34:17,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 04:34:17,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:17,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 04:34:17,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 04:34:17,758 INFO L87 Difference]: Start difference. First operand 795 states and 992 transitions. Second operand 6 states. [2020-08-22 04:34:18,237 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:19,319 INFO L93 Difference]: Finished difference Result 1342 states and 1669 transitions. [2020-08-22 04:34:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 04:34:19,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-08-22 04:34:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:19,328 INFO L225 Difference]: With dead ends: 1342 [2020-08-22 04:34:19,329 INFO L226 Difference]: Without dead ends: 783 [2020-08-22 04:34:19,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:34:19,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-08-22 04:34:19,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 681. [2020-08-22 04:34:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-08-22 04:34:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 812 transitions. [2020-08-22 04:34:19,502 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 812 transitions. Word has length 83 [2020-08-22 04:34:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:19,505 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 812 transitions. [2020-08-22 04:34:19,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 04:34:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 812 transitions. [2020-08-22 04:34:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-22 04:34:19,515 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:19,516 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] [2020-08-22 04:34:19,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 04:34:19,516 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:19,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:19,517 INFO L82 PathProgramCache]: Analyzing trace with hash 765386145, now seen corresponding path program 1 times [2020-08-22 04:34:19,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:19,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850793623] [2020-08-22 04:34:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,780 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:19,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:34:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 04:34:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-22 04:34:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 04:34:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:19,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850793623] [2020-08-22 04:34:19,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:19,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:19,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782842168] [2020-08-22 04:34:19,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:19,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:19,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:19,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:19,906 INFO L87 Difference]: Start difference. First operand 681 states and 812 transitions. Second operand 9 states. [2020-08-22 04:34:20,966 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:21,304 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:21,604 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:21,843 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:22,460 INFO L93 Difference]: Finished difference Result 1456 states and 1829 transitions. [2020-08-22 04:34:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 04:34:22,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-08-22 04:34:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:22,467 INFO L225 Difference]: With dead ends: 1456 [2020-08-22 04:34:22,467 INFO L226 Difference]: Without dead ends: 803 [2020-08-22 04:34:22,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 04:34:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-08-22 04:34:22,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 701. [2020-08-22 04:34:22,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-08-22 04:34:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 832 transitions. [2020-08-22 04:34:22,584 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 832 transitions. Word has length 87 [2020-08-22 04:34:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:22,584 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 832 transitions. [2020-08-22 04:34:22,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 832 transitions. [2020-08-22 04:34:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-22 04:34:22,586 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:22,586 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] [2020-08-22 04:34:22,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 04:34:22,587 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:22,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:22,587 INFO L82 PathProgramCache]: Analyzing trace with hash -2143377757, now seen corresponding path program 1 times [2020-08-22 04:34:22,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:22,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218870877] [2020-08-22 04:34:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,866 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:22,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:34:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 04:34:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-22 04:34:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:22,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 04:34:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:23,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218870877] [2020-08-22 04:34:23,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:23,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 04:34:23,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314108424] [2020-08-22 04:34:23,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 04:34:23,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:23,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 04:34:23,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 04:34:23,025 INFO L87 Difference]: Start difference. First operand 701 states and 832 transitions. Second operand 11 states. [2020-08-22 04:34:23,721 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:23,964 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:24,194 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:24,898 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:25,164 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:25,417 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:26,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:26,200 INFO L93 Difference]: Finished difference Result 1322 states and 1646 transitions. [2020-08-22 04:34:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 04:34:26,200 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 87 [2020-08-22 04:34:26,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:26,206 INFO L225 Difference]: With dead ends: 1322 [2020-08-22 04:34:26,206 INFO L226 Difference]: Without dead ends: 649 [2020-08-22 04:34:26,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 04:34:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-08-22 04:34:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 576. [2020-08-22 04:34:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-08-22 04:34:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 668 transitions. [2020-08-22 04:34:26,301 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 668 transitions. Word has length 87 [2020-08-22 04:34:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:26,302 INFO L479 AbstractCegarLoop]: Abstraction has 576 states and 668 transitions. [2020-08-22 04:34:26,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 04:34:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 668 transitions. [2020-08-22 04:34:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-22 04:34:26,306 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:26,306 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:26,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 04:34:26,307 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:26,307 INFO L82 PathProgramCache]: Analyzing trace with hash 858193610, now seen corresponding path program 1 times [2020-08-22 04:34:26,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:26,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874651204] [2020-08-22 04:34:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,630 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:26,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 04:34:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 04:34:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 04:34:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:34:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:26,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874651204] [2020-08-22 04:34:26,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:26,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 04:34:26,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589724427] [2020-08-22 04:34:26,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 04:34:26,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:26,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 04:34:26,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 04:34:26,807 INFO L87 Difference]: Start difference. First operand 576 states and 668 transitions. Second operand 12 states. [2020-08-22 04:34:27,250 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:27,895 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:28,612 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:28,957 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:29,215 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:29,529 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:29,820 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:31,062 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:31,319 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:31,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:31,910 INFO L93 Difference]: Finished difference Result 1645 states and 2041 transitions. [2020-08-22 04:34:31,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 04:34:31,911 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-08-22 04:34:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:31,918 INFO L225 Difference]: With dead ends: 1645 [2020-08-22 04:34:31,919 INFO L226 Difference]: Without dead ends: 1269 [2020-08-22 04:34:31,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 04:34:31,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2020-08-22 04:34:32,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1155. [2020-08-22 04:34:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2020-08-22 04:34:32,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1335 transitions. [2020-08-22 04:34:32,129 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1335 transitions. Word has length 91 [2020-08-22 04:34:32,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:32,130 INFO L479 AbstractCegarLoop]: Abstraction has 1155 states and 1335 transitions. [2020-08-22 04:34:32,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 04:34:32,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1335 transitions. [2020-08-22 04:34:32,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-22 04:34:32,134 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:32,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:32,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 04:34:32,135 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:32,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:32,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1244109311, now seen corresponding path program 1 times [2020-08-22 04:34:32,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:32,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143202186] [2020-08-22 04:34:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,509 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:32,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 04:34:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:34:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-22 04:34:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 04:34:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:34:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-22 04:34:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 04:34:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 04:34:32,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143202186] [2020-08-22 04:34:32,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:32,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 04:34:32,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596149457] [2020-08-22 04:34:32,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 04:34:32,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:32,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 04:34:32,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:34:32,792 INFO L87 Difference]: Start difference. First operand 1155 states and 1335 transitions. Second operand 16 states. [2020-08-22 04:34:33,676 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:34,137 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 04:34:34,401 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 04:34:34,659 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 04:34:35,290 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:35,626 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:36,031 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:36,332 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:37,259 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:37,921 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:38,221 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:38,550 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:39,013 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:39,486 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:39,801 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:40,053 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:40,314 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:40,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:40,768 INFO L93 Difference]: Finished difference Result 2146 states and 2551 transitions. [2020-08-22 04:34:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-22 04:34:40,769 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 134 [2020-08-22 04:34:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:40,776 INFO L225 Difference]: With dead ends: 2146 [2020-08-22 04:34:40,776 INFO L226 Difference]: Without dead ends: 1185 [2020-08-22 04:34:40,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-08-22 04:34:40,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2020-08-22 04:34:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1065. [2020-08-22 04:34:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-08-22 04:34:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1223 transitions. [2020-08-22 04:34:40,949 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1223 transitions. Word has length 134 [2020-08-22 04:34:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:40,950 INFO L479 AbstractCegarLoop]: Abstraction has 1065 states and 1223 transitions. [2020-08-22 04:34:40,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 04:34:40,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1223 transitions. [2020-08-22 04:34:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-08-22 04:34:40,955 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:40,956 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:40,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 04:34:40,956 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1284254506, now seen corresponding path program 1 times [2020-08-22 04:34:40,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:40,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598047987] [2020-08-22 04:34:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,257 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:41,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 04:34:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:34:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 04:34:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 04:34:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-08-22 04:34:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-08-22 04:34:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-08-22 04:34:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-08-22 04:34:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-08-22 04:34:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 76 proven. 31 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-08-22 04:34:41,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598047987] [2020-08-22 04:34:41,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:41,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 04:34:41,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645192614] [2020-08-22 04:34:41,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 04:34:41,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:41,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 04:34:41,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:34:41,670 INFO L87 Difference]: Start difference. First operand 1065 states and 1223 transitions. Second operand 16 states. [2020-08-22 04:34:43,193 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:43,462 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:43,732 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:43,986 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:44,242 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:44,830 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:45,396 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 04:34:45,928 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 04:34:46,550 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:48,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:48,308 INFO L93 Difference]: Finished difference Result 2947 states and 3535 transitions. [2020-08-22 04:34:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-08-22 04:34:48,309 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 241 [2020-08-22 04:34:48,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:48,320 INFO L225 Difference]: With dead ends: 2947 [2020-08-22 04:34:48,321 INFO L226 Difference]: Without dead ends: 1803 [2020-08-22 04:34:48,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=449, Invalid=1807, Unknown=0, NotChecked=0, Total=2256 [2020-08-22 04:34:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2020-08-22 04:34:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1431. [2020-08-22 04:34:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-08-22 04:34:48,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1658 transitions. [2020-08-22 04:34:48,623 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1658 transitions. Word has length 241 [2020-08-22 04:34:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:48,624 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1658 transitions. [2020-08-22 04:34:48,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 04:34:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1658 transitions. [2020-08-22 04:34:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-08-22 04:34:48,633 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:48,634 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:48,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 04:34:48,634 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:48,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:48,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1853664495, now seen corresponding path program 1 times [2020-08-22 04:34:48,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:48,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311806739] [2020-08-22 04:34:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:48,984 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:48,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:48,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 04:34:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:34:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 04:34:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 04:34:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 04:34:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-22 04:34:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-08-22 04:34:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-08-22 04:34:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-08-22 04:34:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-08-22 04:34:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 85 proven. 31 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-08-22 04:34:49,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311806739] [2020-08-22 04:34:49,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:49,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 04:34:49,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404322162] [2020-08-22 04:34:49,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 04:34:49,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:49,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 04:34:49,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-22 04:34:49,314 INFO L87 Difference]: Start difference. First operand 1431 states and 1658 transitions. Second operand 17 states. [2020-08-22 04:34:49,780 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:50,097 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:50,364 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:50,605 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:51,249 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:52,176 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:52,547 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:52,815 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:53,437 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:54,072 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:54,312 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:54,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:54,870 INFO L93 Difference]: Finished difference Result 2569 states and 3040 transitions. [2020-08-22 04:34:54,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 04:34:54,871 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 247 [2020-08-22 04:34:54,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:54,878 INFO L225 Difference]: With dead ends: 2569 [2020-08-22 04:34:54,879 INFO L226 Difference]: Without dead ends: 1456 [2020-08-22 04:34:54,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=370, Invalid=1436, Unknown=0, NotChecked=0, Total=1806 [2020-08-22 04:34:54,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2020-08-22 04:34:55,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1402. [2020-08-22 04:34:55,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2020-08-22 04:34:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1608 transitions. [2020-08-22 04:34:55,099 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1608 transitions. Word has length 247 [2020-08-22 04:34:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:55,099 INFO L479 AbstractCegarLoop]: Abstraction has 1402 states and 1608 transitions. [2020-08-22 04:34:55,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 04:34:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1608 transitions. [2020-08-22 04:34:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-08-22 04:34:55,108 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:55,108 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:55,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 04:34:55,109 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:55,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:55,109 INFO L82 PathProgramCache]: Analyzing trace with hash -276065170, now seen corresponding path program 1 times [2020-08-22 04:34:55,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:55,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165418655] [2020-08-22 04:34:55,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,472 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:55,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 04:34:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:34:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 04:34:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 04:34:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 04:34:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat