/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 02:41:36,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 02:41:36,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 02:41:36,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 02:41:36,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 02:41:36,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 02:41:36,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 02:41:36,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 02:41:36,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 02:41:36,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 02:41:36,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 02:41:36,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 02:41:36,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 02:41:36,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 02:41:36,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 02:41:36,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 02:41:36,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 02:41:36,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 02:41:36,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 02:41:36,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 02:41:36,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 02:41:36,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 02:41:36,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 02:41:36,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 02:41:36,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 02:41:36,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 02:41:36,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 02:41:36,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 02:41:36,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 02:41:36,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 02:41:36,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 02:41:36,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 02:41:36,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 02:41:36,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 02:41:36,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 02:41:36,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 02:41:36,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 02:41:36,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 02:41:36,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 02:41:36,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 02:41:36,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 02:41:36,187 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 [2020-08-19 02:41:36,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 02:41:36,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 02:41:36,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 02:41:36,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 02:41:36,234 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 02:41:36,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 02:41:36,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 02:41:36,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 02:41:36,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 02:41:36,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 02:41:36,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 02:41:36,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 02:41:36,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 02:41:36,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 02:41:36,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 02:41:36,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 02:41:36,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 02:41:36,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 02:41:36,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 02:41:36,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 02:41:36,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 02:41:36,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 02:41:36,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 02:41:36,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 02:41:36,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 02:41:36,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 02:41:36,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 02:41:36,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 02:41:36,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 02:41:36,240 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=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; [2020-08-19 02:41:36,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 02:41:36,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 02:41:36,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 02:41:36,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 02:41:36,546 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 02:41:36,547 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-08-19 02:41:36,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad7455219/4d981f88d4f041588c87fe4031748cfb/FLAGd42bf4f72 [2020-08-19 02:41:37,149 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 02:41:37,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-08-19 02:41:37,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad7455219/4d981f88d4f041588c87fe4031748cfb/FLAGd42bf4f72 [2020-08-19 02:41:37,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad7455219/4d981f88d4f041588c87fe4031748cfb [2020-08-19 02:41:37,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 02:41:37,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 02:41:37,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 02:41:37,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 02:41:37,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 02:41:37,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:41:37" (1/1) ... [2020-08-19 02:41:37,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f1707e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:37, skipping insertion in model container [2020-08-19 02:41:37,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:41:37" (1/1) ... [2020-08-19 02:41:37,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 02:41:37,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 02:41:37,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:41:37,885 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 02:41:38,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:41:38,037 INFO L208 MainTranslator]: Completed translation [2020-08-19 02:41:38,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38 WrapperNode [2020-08-19 02:41:38,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 02:41:38,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 02:41:38,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 02:41:38,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 02:41:38,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (1/1) ... [2020-08-19 02:41:38,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 02:41:38,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 02:41:38,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 02:41:38,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 02:41:38,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (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 [2020-08-19 02:41:38,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 02:41:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 02:41:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 02:41:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 02:41:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 02:41:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 02:41:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 02:41:38,226 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 02:41:38,226 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 02:41:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 02:41:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 02:41:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 02:41:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 02:41:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 02:41:38,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 02:41:38,228 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 02:41:38,229 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 02:41:38,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 02:41:38,229 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 02:41:38,229 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 02:41:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 02:41:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 02:41:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 02:41:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 02:41:38,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 02:41:38,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 02:41:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 02:41:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 02:41:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 02:41:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 02:41:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 02:41:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 02:41:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 02:41:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 02:41:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 02:41:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 02:41:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 02:41:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 02:41:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 02:41:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 02:41:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 02:41:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 02:41:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 02:41:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 02:41:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 02:41:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 02:41:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 02:41:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 02:41:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 02:41:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 02:41:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 02:41:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 02:41:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 02:41:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 02:41:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 02:41:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 02:41:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 02:41:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 02:41:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 02:41:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 02:41:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 02:41:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 02:41:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 02:41:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 02:41:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 02:41:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 02:41:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 02:41:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 02:41:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 02:41:39,357 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 02:41:39,358 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 02:41:39,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:41:39 BoogieIcfgContainer [2020-08-19 02:41:39,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 02:41:39,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 02:41:39,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 02:41:39,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 02:41:39,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 02:41:37" (1/3) ... [2020-08-19 02:41:39,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f574f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:41:39, skipping insertion in model container [2020-08-19 02:41:39,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:41:38" (2/3) ... [2020-08-19 02:41:39,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f574f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:41:39, skipping insertion in model container [2020-08-19 02:41:39,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:41:39" (3/3) ... [2020-08-19 02:41:39,373 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2020-08-19 02:41:39,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 02:41:39,393 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 02:41:39,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 02:41:39,434 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 02:41:39,434 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 02:41:39,434 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 02:41:39,435 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 02:41:39,435 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 02:41:39,435 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 02:41:39,435 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 02:41:39,435 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 02:41:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2020-08-19 02:41:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 02:41:39,471 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:39,472 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] [2020-08-19 02:41:39,472 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:39,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2053229239, now seen corresponding path program 1 times [2020-08-19 02:41:39,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:39,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254638863] [2020-08-19 02:41:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,265 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:40,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 02:41:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 02:41:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 02:41:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:41:40,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254638863] [2020-08-19 02:41:40,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:40,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 02:41:40,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275973261] [2020-08-19 02:41:40,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 02:41:40,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:40,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 02:41:40,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 02:41:40,455 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 4 states. [2020-08-19 02:41:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:41:41,600 INFO L93 Difference]: Finished difference Result 313 states and 401 transitions. [2020-08-19 02:41:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 02:41:41,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 02:41:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:41:41,617 INFO L225 Difference]: With dead ends: 313 [2020-08-19 02:41:41,617 INFO L226 Difference]: Without dead ends: 172 [2020-08-19 02:41:41,622 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 [2020-08-19 02:41:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-08-19 02:41:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 142. [2020-08-19 02:41:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-08-19 02:41:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2020-08-19 02:41:41,717 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 59 [2020-08-19 02:41:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:41:41,718 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2020-08-19 02:41:41,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 02:41:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2020-08-19 02:41:41,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 02:41:41,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:41,723 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] [2020-08-19 02:41:41,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 02:41:41,724 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:41,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:41,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1701396789, now seen corresponding path program 1 times [2020-08-19 02:41:41,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:41,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418330735] [2020-08-19 02:41:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,078 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 02:41:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 02:41:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 02:41:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:41:42,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418330735] [2020-08-19 02:41:42,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:42,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 02:41:42,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320008454] [2020-08-19 02:41:42,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 02:41:42,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:42,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 02:41:42,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 02:41:42,142 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 5 states. [2020-08-19 02:41:42,665 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:43,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:41:43,612 INFO L93 Difference]: Finished difference Result 254 states and 309 transitions. [2020-08-19 02:41:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 02:41:43,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 02:41:43,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:41:43,616 INFO L225 Difference]: With dead ends: 254 [2020-08-19 02:41:43,617 INFO L226 Difference]: Without dead ends: 162 [2020-08-19 02:41:43,618 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 [2020-08-19 02:41:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-08-19 02:41:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2020-08-19 02:41:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-08-19 02:41:43,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2020-08-19 02:41:43,662 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 60 [2020-08-19 02:41:43,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:41:43,662 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2020-08-19 02:41:43,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 02:41:43,663 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2020-08-19 02:41:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 02:41:43,665 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:43,665 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] [2020-08-19 02:41:43,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 02:41:43,666 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:43,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:43,666 INFO L82 PathProgramCache]: Analyzing trace with hash -835538636, now seen corresponding path program 1 times [2020-08-19 02:41:43,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:43,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949597447] [2020-08-19 02:41:43,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,010 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:44,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:41:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 02:41:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 02:41:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:44,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:41:44,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949597447] [2020-08-19 02:41:44,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:44,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:41:44,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843295028] [2020-08-19 02:41:44,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:41:44,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:44,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:41:44,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:41:44,120 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand 9 states. [2020-08-19 02:41:44,548 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:41:44,849 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:45,098 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:45,357 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:41:46,666 INFO L93 Difference]: Finished difference Result 267 states and 328 transitions. [2020-08-19 02:41:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 02:41:46,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 02:41:46,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:41:46,672 INFO L225 Difference]: With dead ends: 267 [2020-08-19 02:41:46,672 INFO L226 Difference]: Without dead ends: 162 [2020-08-19 02:41:46,674 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 [2020-08-19 02:41:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-08-19 02:41:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2020-08-19 02:41:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-08-19 02:41:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2020-08-19 02:41:46,708 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 65 [2020-08-19 02:41:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:41:46,709 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2020-08-19 02:41:46,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:41:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2020-08-19 02:41:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-19 02:41:46,711 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:46,712 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] [2020-08-19 02:41:46,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 02:41:46,712 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:46,713 INFO L82 PathProgramCache]: Analyzing trace with hash -192684169, now seen corresponding path program 1 times [2020-08-19 02:41:46,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:46,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366300531] [2020-08-19 02:41:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:46,966 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:46,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:46,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:41:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 02:41:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-19 02:41:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 02:41:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:41:47,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366300531] [2020-08-19 02:41:47,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:47,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 02:41:47,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551503082] [2020-08-19 02:41:47,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 02:41:47,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:47,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 02:41:47,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 02:41:47,077 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 7 states. [2020-08-19 02:41:47,449 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:41:48,912 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:41:49,454 INFO L93 Difference]: Finished difference Result 371 states and 462 transitions. [2020-08-19 02:41:49,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 02:41:49,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-08-19 02:41:49,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:41:49,462 INFO L225 Difference]: With dead ends: 371 [2020-08-19 02:41:49,462 INFO L226 Difference]: Without dead ends: 266 [2020-08-19 02:41:49,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-19 02:41:49,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-08-19 02:41:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 220. [2020-08-19 02:41:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-19 02:41:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 252 transitions. [2020-08-19 02:41:49,514 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 252 transitions. Word has length 78 [2020-08-19 02:41:49,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:41:49,514 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 252 transitions. [2020-08-19 02:41:49,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 02:41:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 252 transitions. [2020-08-19 02:41:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-19 02:41:49,517 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:49,517 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] [2020-08-19 02:41:49,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 02:41:49,517 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:49,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1827957124, now seen corresponding path program 1 times [2020-08-19 02:41:49,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:49,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53726532] [2020-08-19 02:41:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,783 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:49,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:41:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 02:41:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:41:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:41:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 02:41:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 02:41:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:41:49,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53726532] [2020-08-19 02:41:49,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:49,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 02:41:49,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774436658] [2020-08-19 02:41:49,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 02:41:49,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:49,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 02:41:49,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-19 02:41:49,974 INFO L87 Difference]: Start difference. First operand 220 states and 252 transitions. Second operand 12 states. [2020-08-19 02:41:50,636 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:50,889 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:51,113 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:51,931 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:52,180 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:41:52,423 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:52,660 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:53,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:41:53,540 INFO L93 Difference]: Finished difference Result 457 states and 556 transitions. [2020-08-19 02:41:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 02:41:53,542 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-08-19 02:41:53,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:41:53,545 INFO L225 Difference]: With dead ends: 457 [2020-08-19 02:41:53,545 INFO L226 Difference]: Without dead ends: 265 [2020-08-19 02:41:53,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-08-19 02:41:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-08-19 02:41:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 225. [2020-08-19 02:41:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-08-19 02:41:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 257 transitions. [2020-08-19 02:41:53,596 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 257 transitions. Word has length 92 [2020-08-19 02:41:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:41:53,597 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 257 transitions. [2020-08-19 02:41:53,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 02:41:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 257 transitions. [2020-08-19 02:41:53,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-19 02:41:53,598 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:53,599 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] [2020-08-19 02:41:53,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 02:41:53,599 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:53,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:53,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1850589378, now seen corresponding path program 1 times [2020-08-19 02:41:53,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:53,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369422570] [2020-08-19 02:41:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,895 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:53,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:41:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 02:41:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:41:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:41:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 02:41:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:53,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 02:41:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 02:41:54,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369422570] [2020-08-19 02:41:54,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:54,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:41:54,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615432457] [2020-08-19 02:41:54,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:41:54,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:54,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:41:54,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:41:54,019 INFO L87 Difference]: Start difference. First operand 225 states and 257 transitions. Second operand 9 states. [2020-08-19 02:41:54,405 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:41:55,096 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:55,760 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:41:56,066 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:56,543 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:56,767 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:41:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:41:57,339 INFO L93 Difference]: Finished difference Result 467 states and 566 transitions. [2020-08-19 02:41:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 02:41:57,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-08-19 02:41:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:41:57,343 INFO L225 Difference]: With dead ends: 467 [2020-08-19 02:41:57,343 INFO L226 Difference]: Without dead ends: 270 [2020-08-19 02:41:57,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 02:41:57,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-08-19 02:41:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 224. [2020-08-19 02:41:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-19 02:41:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 254 transitions. [2020-08-19 02:41:57,385 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 254 transitions. Word has length 92 [2020-08-19 02:41:57,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:41:57,386 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 254 transitions. [2020-08-19 02:41:57,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:41:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 254 transitions. [2020-08-19 02:41:57,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-19 02:41:57,387 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:41:57,387 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] [2020-08-19 02:41:57,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 02:41:57,388 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:41:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:41:57,388 INFO L82 PathProgramCache]: Analyzing trace with hash 516367047, now seen corresponding path program 1 times [2020-08-19 02:41:57,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:41:57,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723790919] [2020-08-19 02:41:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:41:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,674 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:41:57,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:41:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:41:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:41:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:41:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:41:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:41:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:41:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 02:41:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:41:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:41:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:41:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-19 02:41:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 02:41:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:41:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:41:57,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723790919] [2020-08-19 02:41:57,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:41:57,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 02:41:57,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631795709] [2020-08-19 02:41:57,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 02:41:57,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:41:57,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 02:41:57,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 02:41:57,864 INFO L87 Difference]: Start difference. First operand 224 states and 254 transitions. Second operand 11 states. [2020-08-19 02:41:58,370 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:58,612 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:58,834 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:59,528 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:41:59,776 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:00,011 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:00,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:00,729 INFO L93 Difference]: Finished difference Result 467 states and 563 transitions. [2020-08-19 02:42:00,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 02:42:00,730 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-08-19 02:42:00,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:00,734 INFO L225 Difference]: With dead ends: 467 [2020-08-19 02:42:00,734 INFO L226 Difference]: Without dead ends: 271 [2020-08-19 02:42:00,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 02:42:00,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-08-19 02:42:00,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 228. [2020-08-19 02:42:00,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-08-19 02:42:00,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 258 transitions. [2020-08-19 02:42:00,798 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 258 transitions. Word has length 93 [2020-08-19 02:42:00,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:00,799 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 258 transitions. [2020-08-19 02:42:00,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 02:42:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 258 transitions. [2020-08-19 02:42:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-19 02:42:00,802 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:00,802 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] [2020-08-19 02:42:00,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 02:42:00,803 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:00,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:00,803 INFO L82 PathProgramCache]: Analyzing trace with hash -185232827, now seen corresponding path program 1 times [2020-08-19 02:42:00,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:00,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083834570] [2020-08-19 02:42:00,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,084 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:01,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:42:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 02:42:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-19 02:42:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 02:42:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:42:01,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083834570] [2020-08-19 02:42:01,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:42:01,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:42:01,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950998751] [2020-08-19 02:42:01,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:42:01,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:42:01,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:42:01,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:42:01,270 INFO L87 Difference]: Start difference. First operand 228 states and 258 transitions. Second operand 9 states. [2020-08-19 02:42:02,899 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:03,136 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 02:42:03,376 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:03,607 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:04,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:04,384 INFO L93 Difference]: Finished difference Result 468 states and 562 transitions. [2020-08-19 02:42:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 02:42:04,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-08-19 02:42:04,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:04,387 INFO L225 Difference]: With dead ends: 468 [2020-08-19 02:42:04,387 INFO L226 Difference]: Without dead ends: 268 [2020-08-19 02:42:04,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 02:42:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-08-19 02:42:04,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-08-19 02:42:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-08-19 02:42:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 257 transitions. [2020-08-19 02:42:04,428 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 257 transitions. Word has length 93 [2020-08-19 02:42:04,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:04,428 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 257 transitions. [2020-08-19 02:42:04,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:42:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 257 transitions. [2020-08-19 02:42:04,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-19 02:42:04,430 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:04,430 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] [2020-08-19 02:42:04,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 02:42:04,430 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash -2053119352, now seen corresponding path program 1 times [2020-08-19 02:42:04,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:04,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212614764] [2020-08-19 02:42:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,717 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:04,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:42:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 02:42:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-19 02:42:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 02:42:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:42:04,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212614764] [2020-08-19 02:42:04,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:42:04,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 02:42:04,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537663746] [2020-08-19 02:42:04,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 02:42:04,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:42:04,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 02:42:04,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 02:42:04,836 INFO L87 Difference]: Start difference. First operand 228 states and 257 transitions. Second operand 7 states. [2020-08-19 02:42:05,190 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:05,790 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:07,281 INFO L93 Difference]: Finished difference Result 649 states and 806 transitions. [2020-08-19 02:42:07,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 02:42:07,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-08-19 02:42:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:07,286 INFO L225 Difference]: With dead ends: 649 [2020-08-19 02:42:07,286 INFO L226 Difference]: Without dead ends: 449 [2020-08-19 02:42:07,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 02:42:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-08-19 02:42:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 407. [2020-08-19 02:42:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-08-19 02:42:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 473 transitions. [2020-08-19 02:42:07,361 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 473 transitions. Word has length 93 [2020-08-19 02:42:07,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:07,361 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 473 transitions. [2020-08-19 02:42:07,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 02:42:07,361 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 473 transitions. [2020-08-19 02:42:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-19 02:42:07,363 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:07,363 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] [2020-08-19 02:42:07,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 02:42:07,364 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:07,364 INFO L82 PathProgramCache]: Analyzing trace with hash 868259694, now seen corresponding path program 1 times [2020-08-19 02:42:07,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:07,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157504005] [2020-08-19 02:42:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,700 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:07,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 02:42:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 02:42:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 02:42:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 02:42:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-19 02:42:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 02:42:07,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157504005] [2020-08-19 02:42:07,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:42:07,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 02:42:07,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144630536] [2020-08-19 02:42:07,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 02:42:07,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:42:07,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 02:42:07,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 02:42:07,878 INFO L87 Difference]: Start difference. First operand 407 states and 473 transitions. Second operand 12 states. [2020-08-19 02:42:08,284 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:08,913 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:09,969 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:10,279 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:10,533 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:10,790 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:11,041 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:12,310 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:12,600 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:13,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:13,435 INFO L93 Difference]: Finished difference Result 1129 states and 1396 transitions. [2020-08-19 02:42:13,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 02:42:13,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-08-19 02:42:13,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:13,442 INFO L225 Difference]: With dead ends: 1129 [2020-08-19 02:42:13,442 INFO L226 Difference]: Without dead ends: 824 [2020-08-19 02:42:13,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 02:42:13,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-08-19 02:42:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 702. [2020-08-19 02:42:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-08-19 02:42:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 808 transitions. [2020-08-19 02:42:13,574 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 808 transitions. Word has length 97 [2020-08-19 02:42:13,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:13,575 INFO L479 AbstractCegarLoop]: Abstraction has 702 states and 808 transitions. [2020-08-19 02:42:13,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 02:42:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 808 transitions. [2020-08-19 02:42:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-08-19 02:42:13,578 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:13,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:42:13,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 02:42:13,579 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:13,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:13,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1063606964, now seen corresponding path program 1 times [2020-08-19 02:42:13,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:13,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628787805] [2020-08-19 02:42:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:13,983 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:13,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 02:42:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 02:42:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 02:42:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:42:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:42:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 02:42:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-19 02:42:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-19 02:42:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-19 02:42:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-19 02:42:14,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628787805] [2020-08-19 02:42:14,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 02:42:14,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 02:42:14,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913051447] [2020-08-19 02:42:14,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 02:42:14,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:42:14,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 02:42:14,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 02:42:14,360 INFO L87 Difference]: Start difference. First operand 702 states and 808 transitions. Second operand 16 states. [2020-08-19 02:42:15,702 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:16,025 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 02:42:16,291 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 02:42:16,549 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 02:42:17,195 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:17,462 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:18,166 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:18,495 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 02:42:19,317 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:19,577 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 02:42:19,826 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:20,126 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:20,669 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:21,076 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:21,420 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 02:42:22,018 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:22,301 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 02:42:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:22,875 INFO L93 Difference]: Finished difference Result 1547 states and 1835 transitions. [2020-08-19 02:42:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-19 02:42:22,876 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 159 [2020-08-19 02:42:22,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:22,882 INFO L225 Difference]: With dead ends: 1547 [2020-08-19 02:42:22,883 INFO L226 Difference]: Without dead ends: 943 [2020-08-19 02:42:22,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=568, Invalid=2084, Unknown=0, NotChecked=0, Total=2652 [2020-08-19 02:42:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2020-08-19 02:42:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 850. [2020-08-19 02:42:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-08-19 02:42:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 986 transitions. [2020-08-19 02:42:23,040 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 986 transitions. Word has length 159 [2020-08-19 02:42:23,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:23,040 INFO L479 AbstractCegarLoop]: Abstraction has 850 states and 986 transitions. [2020-08-19 02:42:23,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 02:42:23,041 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 986 transitions. [2020-08-19 02:42:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-08-19 02:42:23,046 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:23,047 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:42:23,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 02:42:23,047 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:23,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1141492594, now seen corresponding path program 1 times [2020-08-19 02:42:23,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:23,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015556474] [2020-08-19 02:42:23,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,404 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 02:42:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 02:42:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 02:42:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:42:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 02:42:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 02:42:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 02:42:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-19 02:42:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 02:42:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 02:42:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-19 02:42:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-08-19 02:42:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-19 02:42:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-19 02:42:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 83 proven. 29 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-08-19 02:42:23,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015556474] [2020-08-19 02:42:23,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 02:42:23,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-19 02:42:23,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541971170] [2020-08-19 02:42:23,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-19 02:42:23,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:42:23,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-19 02:42:23,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-19 02:42:23,949 INFO L87 Difference]: Start difference. First operand 850 states and 986 transitions. Second operand 15 states. [2020-08-19 02:42:25,362 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 02:42:25,620 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:25,852 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:26,090 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:27,581 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:28,322 INFO L93 Difference]: Finished difference Result 2242 states and 2707 transitions. [2020-08-19 02:42:28,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-19 02:42:28,323 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 277 [2020-08-19 02:42:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:28,331 INFO L225 Difference]: With dead ends: 2242 [2020-08-19 02:42:28,332 INFO L226 Difference]: Without dead ends: 1325 [2020-08-19 02:42:28,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-19 02:42:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2020-08-19 02:42:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1123. [2020-08-19 02:42:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-08-19 02:42:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1332 transitions. [2020-08-19 02:42:28,565 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1332 transitions. Word has length 277 [2020-08-19 02:42:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:28,569 INFO L479 AbstractCegarLoop]: Abstraction has 1123 states and 1332 transitions. [2020-08-19 02:42:28,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-19 02:42:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1332 transitions. [2020-08-19 02:42:28,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-08-19 02:42:28,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:28,579 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:42:28,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 02:42:28,580 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:28,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:28,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1975666707, now seen corresponding path program 1 times [2020-08-19 02:42:28,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:28,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419139134] [2020-08-19 02:42:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:28,954 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:28,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:28,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:28,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:28,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:28,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 02:42:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 02:42:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 02:42:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:42:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 02:42:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 02:42:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 02:42:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 02:42:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-19 02:42:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 02:42:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 02:42:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-08-19 02:42:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-08-19 02:42:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-19 02:42:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-08-19 02:42:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 90 proven. 36 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-08-19 02:42:29,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419139134] [2020-08-19 02:42:29,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 02:42:29,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 02:42:29,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269978097] [2020-08-19 02:42:29,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 02:42:29,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:42:29,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 02:42:29,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-19 02:42:29,328 INFO L87 Difference]: Start difference. First operand 1123 states and 1332 transitions. Second operand 16 states. [2020-08-19 02:42:29,917 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:30,252 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:30,514 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:30,754 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 02:42:31,509 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:32,302 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 02:42:32,681 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:32,946 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:33,605 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:34,437 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:34,685 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 02:42:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:42:35,250 INFO L93 Difference]: Finished difference Result 2127 states and 2561 transitions. [2020-08-19 02:42:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-19 02:42:35,251 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 283 [2020-08-19 02:42:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:42:35,260 INFO L225 Difference]: With dead ends: 2127 [2020-08-19 02:42:35,260 INFO L226 Difference]: Without dead ends: 1125 [2020-08-19 02:42:35,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-19 02:42:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2020-08-19 02:42:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1075. [2020-08-19 02:42:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1075 states. [2020-08-19 02:42:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1258 transitions. [2020-08-19 02:42:35,515 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1258 transitions. Word has length 283 [2020-08-19 02:42:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:42:35,516 INFO L479 AbstractCegarLoop]: Abstraction has 1075 states and 1258 transitions. [2020-08-19 02:42:35,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 02:42:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1258 transitions. [2020-08-19 02:42:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-08-19 02:42:35,526 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:42:35,526 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:42:35,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-19 02:42:35,526 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:42:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:42:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1186071979, now seen corresponding path program 1 times [2020-08-19 02:42:35,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:42:35,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933209109] [2020-08-19 02:42:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:42:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,813 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 02:42:35,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:42:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:42:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:42:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:42:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 02:42:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 02:42:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 02:42:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:42:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 02:42:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 02:42:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 02:42:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 02:42:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-19 02:42:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:42:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 02:42:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:35,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 02:42:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 02:42:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-19 02:42:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:42:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-19 02:42:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 02:42:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:42:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 02:42:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2020-08-19 02:42:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:42:36,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-08-19 02:42:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat