/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:09:20,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:09:20,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:09:20,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 02:09:20,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 02:09:20,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 02:09:20,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 02:09:20,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 02:09:20,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 02:09:20,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 02:09:20,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 02:09:20,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 02:09:20,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:09:20,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:09:20,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:09:20,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:09:20,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:09:20,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:09:20,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:09:20,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:09:20,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:09:20,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:09:20,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:09:20,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:09:20,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 02:09:20,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 02:09:20,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 02:09:20,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 02:09:20,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 02:09:20,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 02:09:20,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 02:09:20,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 02:09:20,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 02:09:20,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 02:09:20,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 02:09:20,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 02:09:20,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 02:09:20,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 02:09:20,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:09:20,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:09:20,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:09:20,557 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 02:09:20,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:09:20,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:09:20,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:09:20,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:09:20,594 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:09:20,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:09:20,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:09:20,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:09:20,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:09:20,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:09:20,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:09:20,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:09:20,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:09:20,595 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:09:20,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:09:20,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:09:20,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:09:20,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:09:20,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:09:20,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:09:20,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:09:20,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:09:20,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:09:20,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:09:20,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:09:20,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:09:20,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:09:20,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:09:20,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:09:20,599 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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-08-22 02:09:20,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:09:20,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:09:20,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:09:20,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:09:20,922 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:09:20,923 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-08-22 02:09:20,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bd401974/299adca9a3014e7397d9d0b97bd6148d/FLAGff57e6d61 [2020-08-22 02:09:21,495 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:09:21,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-08-22 02:09:21,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bd401974/299adca9a3014e7397d9d0b97bd6148d/FLAGff57e6d61 [2020-08-22 02:09:21,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bd401974/299adca9a3014e7397d9d0b97bd6148d [2020-08-22 02:09:21,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:09:21,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:09:21,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:09:21,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:09:21,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:09:21,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:09:21" (1/1) ... [2020-08-22 02:09:21,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d44f655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:21, skipping insertion in model container [2020-08-22 02:09:21,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:09:21" (1/1) ... [2020-08-22 02:09:21,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:09:21,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:09:22,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:09:22,318 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:09:22,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:09:22,447 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:09:22,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22 WrapperNode [2020-08-22 02:09:22,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:09:22,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:09:22,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:09:22,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:09:22,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (1/1) ... [2020-08-22 02:09:22,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:09:22,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:09:22,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:09:22,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:09:22,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (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 02:09:22,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:09:22,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:09:22,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 02:09:22,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 02:09:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 02:09:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 02:09:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 02:09:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 02:09:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 02:09:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 02:09:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 02:09:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 02:09:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 02:09:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 02:09:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 02:09:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 02:09:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 02:09:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 02:09:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 02:09:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:09:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 02:09:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 02:09:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 02:09:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 02:09:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 02:09:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 02:09:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 02:09:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 02:09:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 02:09:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 02:09:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 02:09:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 02:09:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 02:09:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 02:09:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 02:09:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 02:09:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 02:09:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 02:09:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 02:09:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 02:09:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 02:09:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 02:09:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 02:09:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 02:09:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 02:09:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 02:09:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 02:09:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 02:09:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 02:09:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 02:09:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 02:09:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 02:09:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 02:09:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 02:09:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 02:09:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 02:09:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 02:09:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 02:09:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 02:09:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:09:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 02:09:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 02:09:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 02:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 02:09:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 02:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 02:09:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 02:09:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 02:09:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 02:09:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:09:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 02:09:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:09:23,624 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:09:23,624 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 02:09:23,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:09:23 BoogieIcfgContainer [2020-08-22 02:09:23,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:09:23,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:09:23,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:09:23,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:09:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:09:21" (1/3) ... [2020-08-22 02:09:23,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8353b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:09:23, skipping insertion in model container [2020-08-22 02:09:23,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:09:22" (2/3) ... [2020-08-22 02:09:23,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8353b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:09:23, skipping insertion in model container [2020-08-22 02:09:23,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:09:23" (3/3) ... [2020-08-22 02:09:23,638 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2020-08-22 02:09:23,649 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:09:23,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:09:23,672 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:09:23,698 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:09:23,699 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:09:23,699 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:09:23,699 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:09:23,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:09:23,700 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:09:23,700 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:09:23,700 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:09:23,723 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2020-08-22 02:09:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 02:09:23,733 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:23,737 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 02:09:23,738 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash -404445524, now seen corresponding path program 1 times [2020-08-22 02:09:23,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:23,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631719775] [2020-08-22 02:09:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,451 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:24,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:09:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:09:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:09:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:24,569 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 02:09:24,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631719775] [2020-08-22 02:09:24,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:24,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 02:09:24,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146787358] [2020-08-22 02:09:24,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 02:09:24,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:24,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 02:09:24,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 02:09:24,600 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 4 states. [2020-08-22 02:09:25,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:25,880 INFO L93 Difference]: Finished difference Result 351 states and 448 transitions. [2020-08-22 02:09:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 02:09:25,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 02:09:25,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:25,898 INFO L225 Difference]: With dead ends: 351 [2020-08-22 02:09:25,898 INFO L226 Difference]: Without dead ends: 192 [2020-08-22 02:09:25,903 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 02:09:25,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-08-22 02:09:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 160. [2020-08-22 02:09:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-08-22 02:09:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2020-08-22 02:09:26,002 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 59 [2020-08-22 02:09:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:26,003 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2020-08-22 02:09:26,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 02:09:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2020-08-22 02:09:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 02:09:26,007 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:26,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:09:26,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:09:26,008 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:26,008 INFO L82 PathProgramCache]: Analyzing trace with hash -315023676, now seen corresponding path program 1 times [2020-08-22 02:09:26,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:26,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894226628] [2020-08-22 02:09:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,335 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 02:09:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 02:09:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 02:09:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:26,393 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 02:09:26,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894226628] [2020-08-22 02:09:26,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:26,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 02:09:26,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252715997] [2020-08-22 02:09:26,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 02:09:26,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:26,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 02:09:26,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:09:26,400 INFO L87 Difference]: Start difference. First operand 160 states and 188 transitions. Second operand 5 states. [2020-08-22 02:09:26,876 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:27,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:27,995 INFO L93 Difference]: Finished difference Result 292 states and 356 transitions. [2020-08-22 02:09:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:09:27,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-22 02:09:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:27,999 INFO L225 Difference]: With dead ends: 292 [2020-08-22 02:09:27,999 INFO L226 Difference]: Without dead ends: 182 [2020-08-22 02:09:28,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:09:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-22 02:09:28,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2020-08-22 02:09:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-08-22 02:09:28,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 176 transitions. [2020-08-22 02:09:28,049 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 176 transitions. Word has length 60 [2020-08-22 02:09:28,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:28,049 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 176 transitions. [2020-08-22 02:09:28,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 02:09:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 176 transitions. [2020-08-22 02:09:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 02:09:28,052 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:28,052 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] [2020-08-22 02:09:28,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:09:28,053 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:28,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:28,053 INFO L82 PathProgramCache]: Analyzing trace with hash 649722396, now seen corresponding path program 1 times [2020-08-22 02:09:28,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:28,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563582164] [2020-08-22 02:09:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,402 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:28,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:09:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:09:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 02:09:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:28,535 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 02:09:28,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563582164] [2020-08-22 02:09:28,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:28,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:09:28,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657203211] [2020-08-22 02:09:28,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:09:28,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:28,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:09:28,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:09:28,538 INFO L87 Difference]: Start difference. First operand 151 states and 176 transitions. Second operand 9 states. [2020-08-22 02:09:28,935 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:29,270 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:29,509 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:29,730 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:31,112 INFO L93 Difference]: Finished difference Result 305 states and 375 transitions. [2020-08-22 02:09:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 02:09:31,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-22 02:09:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:31,117 INFO L225 Difference]: With dead ends: 305 [2020-08-22 02:09:31,117 INFO L226 Difference]: Without dead ends: 182 [2020-08-22 02:09:31,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-22 02:09:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-22 02:09:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2020-08-22 02:09:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-08-22 02:09:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2020-08-22 02:09:31,153 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 65 [2020-08-22 02:09:31,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:31,154 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2020-08-22 02:09:31,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:09:31,154 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2020-08-22 02:09:31,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-22 02:09:31,157 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:31,157 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 02:09:31,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 02:09:31,157 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:31,158 INFO L82 PathProgramCache]: Analyzing trace with hash 2071838844, now seen corresponding path program 1 times [2020-08-22 02:09:31,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:31,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639589544] [2020-08-22 02:09:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,468 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:31,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:09:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 02:09:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 02:09:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 02:09:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:31,590 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 02:09:31,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639589544] [2020-08-22 02:09:31,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:31,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 02:09:31,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888517390] [2020-08-22 02:09:31,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:09:31,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:31,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:09:31,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:09:31,594 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand 7 states. [2020-08-22 02:09:31,892 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:33,271 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:33,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:33,860 INFO L93 Difference]: Finished difference Result 415 states and 516 transitions. [2020-08-22 02:09:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 02:09:33,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-08-22 02:09:33,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:33,865 INFO L225 Difference]: With dead ends: 415 [2020-08-22 02:09:33,865 INFO L226 Difference]: Without dead ends: 292 [2020-08-22 02:09:33,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-22 02:09:33,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-08-22 02:09:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 246. [2020-08-22 02:09:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-08-22 02:09:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions. [2020-08-22 02:09:33,930 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 83 [2020-08-22 02:09:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:33,931 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions. [2020-08-22 02:09:33,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:09:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions. [2020-08-22 02:09:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-22 02:09:33,933 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:33,933 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:09:33,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 02:09:33,934 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:33,934 INFO L82 PathProgramCache]: Analyzing trace with hash 477615551, now seen corresponding path program 1 times [2020-08-22 02:09:33,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:33,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858132577] [2020-08-22 02:09:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,271 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:34,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:09:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 02:09:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:09:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 02:09:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 02:09:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:34,404 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 02:09:34,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858132577] [2020-08-22 02:09:34,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:34,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:09:34,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886211146] [2020-08-22 02:09:34,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:09:34,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:34,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:09:34,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:09:34,406 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand 9 states. [2020-08-22 02:09:34,829 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:35,514 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:36,251 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:36,559 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:36,989 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:37,254 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:37,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:37,918 INFO L93 Difference]: Finished difference Result 509 states and 612 transitions. [2020-08-22 02:09:37,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 02:09:37,919 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-08-22 02:09:37,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:37,922 INFO L225 Difference]: With dead ends: 509 [2020-08-22 02:09:37,923 INFO L226 Difference]: Without dead ends: 291 [2020-08-22 02:09:37,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 02:09:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-08-22 02:09:37,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 245. [2020-08-22 02:09:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 02:09:37,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 277 transitions. [2020-08-22 02:09:37,976 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 277 transitions. Word has length 97 [2020-08-22 02:09:37,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:37,977 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 277 transitions. [2020-08-22 02:09:37,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:09:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 277 transitions. [2020-08-22 02:09:37,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 02:09:37,979 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:37,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:09:37,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 02:09:37,980 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:37,980 INFO L82 PathProgramCache]: Analyzing trace with hash 115684108, now seen corresponding path program 1 times [2020-08-22 02:09:37,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:37,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139385674] [2020-08-22 02:09:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,236 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:09:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 02:09:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:09:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 02:09:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 02:09:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:38,412 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 02:09:38,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139385674] [2020-08-22 02:09:38,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:38,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:09:38,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613316849] [2020-08-22 02:09:38,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:09:38,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:38,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:09:38,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:09:38,415 INFO L87 Difference]: Start difference. First operand 245 states and 277 transitions. Second operand 9 states. [2020-08-22 02:09:39,507 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:39,767 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 02:09:40,022 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:40,281 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:41,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:41,226 INFO L93 Difference]: Finished difference Result 507 states and 607 transitions. [2020-08-22 02:09:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 02:09:41,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-22 02:09:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:41,230 INFO L225 Difference]: With dead ends: 507 [2020-08-22 02:09:41,231 INFO L226 Difference]: Without dead ends: 290 [2020-08-22 02:09:41,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 02:09:41,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-08-22 02:09:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 250. [2020-08-22 02:09:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-08-22 02:09:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 282 transitions. [2020-08-22 02:09:41,296 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 282 transitions. Word has length 98 [2020-08-22 02:09:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:41,297 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 282 transitions. [2020-08-22 02:09:41,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:09:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 282 transitions. [2020-08-22 02:09:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 02:09:41,304 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:41,304 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:09:41,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 02:09:41,304 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:41,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:41,305 INFO L82 PathProgramCache]: Analyzing trace with hash 43297550, now seen corresponding path program 1 times [2020-08-22 02:09:41,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:41,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92344286] [2020-08-22 02:09:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,575 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:41,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:09:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 02:09:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:09:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 02:09:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 02:09:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:41,738 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 02:09:41,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92344286] [2020-08-22 02:09:41,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:41,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 02:09:41,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792128607] [2020-08-22 02:09:41,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 02:09:41,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:41,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 02:09:41,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 02:09:41,741 INFO L87 Difference]: Start difference. First operand 250 states and 282 transitions. Second operand 11 states. [2020-08-22 02:09:42,244 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:42,492 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:42,731 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:43,491 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:43,758 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:44,002 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:45,029 INFO L93 Difference]: Finished difference Result 519 states and 628 transitions. [2020-08-22 02:09:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 02:09:45,030 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-22 02:09:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:45,032 INFO L225 Difference]: With dead ends: 519 [2020-08-22 02:09:45,032 INFO L226 Difference]: Without dead ends: 297 [2020-08-22 02:09:45,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 02:09:45,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-08-22 02:09:45,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 254. [2020-08-22 02:09:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-08-22 02:09:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 286 transitions. [2020-08-22 02:09:45,083 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 286 transitions. Word has length 98 [2020-08-22 02:09:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:45,084 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 286 transitions. [2020-08-22 02:09:45,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 02:09:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 286 transitions. [2020-08-22 02:09:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 02:09:45,085 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:45,086 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, 1, 1, 1, 1, 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 02:09:45,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 02:09:45,086 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:45,086 INFO L82 PathProgramCache]: Analyzing trace with hash 373063311, now seen corresponding path program 1 times [2020-08-22 02:09:45,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:45,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522483318] [2020-08-22 02:09:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,388 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:45,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:09:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 02:09:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:09:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 02:09:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 02:09:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:45,565 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 02:09:45,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522483318] [2020-08-22 02:09:45,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:45,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 02:09:45,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126226240] [2020-08-22 02:09:45,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:09:45,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:45,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:09:45,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:09:45,571 INFO L87 Difference]: Start difference. First operand 254 states and 286 transitions. Second operand 7 states. [2020-08-22 02:09:45,935 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:46,469 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:48,500 INFO L93 Difference]: Finished difference Result 711 states and 879 transitions. [2020-08-22 02:09:48,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 02:09:48,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-08-22 02:09:48,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:48,505 INFO L225 Difference]: With dead ends: 711 [2020-08-22 02:09:48,505 INFO L226 Difference]: Without dead ends: 485 [2020-08-22 02:09:48,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 02:09:48,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-08-22 02:09:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 443. [2020-08-22 02:09:48,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-08-22 02:09:48,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 514 transitions. [2020-08-22 02:09:48,610 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 514 transitions. Word has length 98 [2020-08-22 02:09:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:48,613 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 514 transitions. [2020-08-22 02:09:48,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:09:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 514 transitions. [2020-08-22 02:09:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 02:09:48,617 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:48,617 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:09:48,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 02:09:48,618 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:48,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:48,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1661296137, now seen corresponding path program 1 times [2020-08-22 02:09:48,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:48,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165695206] [2020-08-22 02:09:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:48,955 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:48,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:48,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:48,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:48,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:09:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 02:09:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 02:09:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:09:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 02:09:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-22 02:09:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:49,162 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 02:09:49,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165695206] [2020-08-22 02:09:49,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:09:49,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 02:09:49,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207370165] [2020-08-22 02:09:49,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 02:09:49,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:49,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 02:09:49,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:09:49,166 INFO L87 Difference]: Start difference. First operand 443 states and 514 transitions. Second operand 12 states. [2020-08-22 02:09:50,132 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:50,757 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:51,850 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:52,151 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:52,409 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:09:52,701 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:52,943 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:09:54,305 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:09:54,599 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:09:55,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:09:55,566 INFO L93 Difference]: Finished difference Result 1230 states and 1515 transitions. [2020-08-22 02:09:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 02:09:55,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2020-08-22 02:09:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:09:55,577 INFO L225 Difference]: With dead ends: 1230 [2020-08-22 02:09:55,578 INFO L226 Difference]: Without dead ends: 894 [2020-08-22 02:09:55,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 02:09:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-22 02:09:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 769. [2020-08-22 02:09:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-08-22 02:09:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 883 transitions. [2020-08-22 02:09:55,748 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 883 transitions. Word has length 102 [2020-08-22 02:09:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:09:55,748 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 883 transitions. [2020-08-22 02:09:55,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 02:09:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 883 transitions. [2020-08-22 02:09:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-08-22 02:09:55,754 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:09:55,754 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:55,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 02:09:55,755 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:09:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:09:55,756 INFO L82 PathProgramCache]: Analyzing trace with hash -577396182, now seen corresponding path program 1 times [2020-08-22 02:09:55,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:09:55,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874910762] [2020-08-22 02:09:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:09:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,136 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:09:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:09:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:09:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:09:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:09:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:09:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:09:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:09:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:09:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:09:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:09:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-22 02:09:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:09:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-22 02:09:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 02:09:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:09:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:09:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 02:09:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:09:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-22 02:09:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-08-22 02:09:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:09:56,648 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-22 02:09:56,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874910762] [2020-08-22 02:09:56,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:09:56,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 02:09:56,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773394254] [2020-08-22 02:09:56,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 02:09:56,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:09:56,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 02:09:56,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 02:09:56,652 INFO L87 Difference]: Start difference. First operand 769 states and 883 transitions. Second operand 16 states. [2020-08-22 02:09:57,490 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 02:09:57,925 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 02:09:58,196 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 02:09:58,451 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 02:09:59,084 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 02:09:59,362 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 02:09:59,836 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-22 02:10:00,589 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:10:00,969 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 02:10:01,961 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 02:10:02,253 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 02:10:02,765 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 02:10:03,063 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:03,649 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:10:04,108 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 02:10:04,822 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 02:10:05,349 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 02:10:06,050 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 02:10:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:10:06,592 INFO L93 Difference]: Finished difference Result 1676 states and 1980 transitions. [2020-08-22 02:10:06,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-22 02:10:06,592 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 180 [2020-08-22 02:10:06,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:10:06,598 INFO L225 Difference]: With dead ends: 1676 [2020-08-22 02:10:06,598 INFO L226 Difference]: Without dead ends: 1010 [2020-08-22 02:10:06,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2020-08-22 02:10:06,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-08-22 02:10:06,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 917. [2020-08-22 02:10:06,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-08-22 02:10:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1061 transitions. [2020-08-22 02:10:06,784 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1061 transitions. Word has length 180 [2020-08-22 02:10:06,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:10:06,785 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1061 transitions. [2020-08-22 02:10:06,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 02:10:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1061 transitions. [2020-08-22 02:10:06,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-08-22 02:10:06,791 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:10:06,791 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:06,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 02:10:06,792 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:10:06,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:10:06,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1633838389, now seen corresponding path program 1 times [2020-08-22 02:10:06,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:10:06,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139043167] [2020-08-22 02:10:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:10:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,113 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:10:07,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:10:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:10:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:10:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:10:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:10:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:10:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:10:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:10:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-22 02:10:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:10:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:10:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 02:10:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 02:10:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-22 02:10:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:10:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:10:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 02:10:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 02:10:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-08-22 02:10:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-08-22 02:10:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2020-08-22 02:10:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-08-22 02:10:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 84 proven. 29 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-08-22 02:10:07,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139043167] [2020-08-22 02:10:07,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:10:07,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 02:10:07,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660810579] [2020-08-22 02:10:07,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 02:10:07,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:10:07,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 02:10:07,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-22 02:10:07,696 INFO L87 Difference]: Start difference. First operand 917 states and 1061 transitions. Second operand 15 states. [2020-08-22 02:10:09,250 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:10:09,527 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:09,793 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:10,062 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:10:11,594 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:10:12,399 INFO L93 Difference]: Finished difference Result 2399 states and 2887 transitions. [2020-08-22 02:10:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 02:10:12,403 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 305 [2020-08-22 02:10:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:10:12,411 INFO L225 Difference]: With dead ends: 2399 [2020-08-22 02:10:12,412 INFO L226 Difference]: Without dead ends: 1409 [2020-08-22 02:10:12,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-22 02:10:12,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2020-08-22 02:10:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1197. [2020-08-22 02:10:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-08-22 02:10:12,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1415 transitions. [2020-08-22 02:10:12,638 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1415 transitions. Word has length 305 [2020-08-22 02:10:12,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:10:12,638 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1415 transitions. [2020-08-22 02:10:12,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 02:10:12,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1415 transitions. [2020-08-22 02:10:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-08-22 02:10:12,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:10:12,645 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:12,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 02:10:12,646 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:10:12,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:10:12,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1189478218, now seen corresponding path program 1 times [2020-08-22 02:10:12,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:10:12,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142591510] [2020-08-22 02:10:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:10:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:12,941 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:10:12,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:10:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:12,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:12,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:10:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:10:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:12,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:10:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:10:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:10:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:10:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:10:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-22 02:10:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:10:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:10:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 02:10:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 02:10:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 02:10:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-08-22 02:10:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:10:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:10:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 02:10:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-22 02:10:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 02:10:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-08-22 02:10:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-08-22 02:10:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 90 proven. 42 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-08-22 02:10:13,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142591510] [2020-08-22 02:10:13,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:10:13,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 02:10:13,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43369009] [2020-08-22 02:10:13,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 02:10:13,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:10:13,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 02:10:13,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-22 02:10:13,300 INFO L87 Difference]: Start difference. First operand 1197 states and 1415 transitions. Second operand 16 states. [2020-08-22 02:10:13,766 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:10:14,098 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:14,372 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:14,611 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:10:15,303 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:10:16,093 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:10:16,431 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:10:16,683 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:10:17,302 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:10:18,310 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:10:18,557 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:10:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:10:19,078 INFO L93 Difference]: Finished difference Result 2270 states and 2722 transitions. [2020-08-22 02:10:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 02:10:19,079 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 307 [2020-08-22 02:10:19,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:10:19,093 INFO L225 Difference]: With dead ends: 2270 [2020-08-22 02:10:19,093 INFO L226 Difference]: Without dead ends: 1199 [2020-08-22 02:10:19,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-22 02:10:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-08-22 02:10:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1149. [2020-08-22 02:10:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2020-08-22 02:10:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1341 transitions. [2020-08-22 02:10:19,353 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1341 transitions. Word has length 307 [2020-08-22 02:10:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:10:19,354 INFO L479 AbstractCegarLoop]: Abstraction has 1149 states and 1341 transitions. [2020-08-22 02:10:19,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 02:10:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1341 transitions. [2020-08-22 02:10:19,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-22 02:10:19,362 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:10:19,362 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:10:19,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 02:10:19,362 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:10:19,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:10:19,363 INFO L82 PathProgramCache]: Analyzing trace with hash 491352727, now seen corresponding path program 1 times [2020-08-22 02:10:19,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:10:19,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930037297] [2020-08-22 02:10:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:10:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,733 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:10:19,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:10:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:10:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:10:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:10:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:10:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:10:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:10:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:10:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-22 02:10:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:10:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:10:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 02:10:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 02:10:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:19,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 02:10:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-08-22 02:10:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:10:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:10:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:10:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 02:10:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 02:10:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-08-22 02:10:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:10:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:10:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-08-22 02:10:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-22 02:10:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 71 proven. 11 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-08-22 02:10:20,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930037297] [2020-08-22 02:10:20,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:10:20,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 02:10:20,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109559224] [2020-08-22 02:10:20,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 02:10:20,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:10:20,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 02:10:20,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-22 02:10:20,196 INFO L87 Difference]: Start difference. First operand 1149 states and 1341 transitions. Second operand 16 states.