/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:34:15,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:34:15,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:34:15,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:34:15,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:34:15,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:34:15,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:34:15,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:34:15,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:34:15,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:34:15,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:34:15,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:34:15,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:34:15,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:34:15,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:34:15,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:34:15,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:34:15,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:34:15,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:34:15,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:34:15,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:34:15,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:34:15,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:34:15,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:34:15,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:34:15,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:34:15,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:34:15,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:34:15,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:34:15,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:34:15,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:34:15,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:34:15,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:34:15,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:34:15,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:34:15,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:34:15,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:34:15,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:34:15,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:34:15,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:34:15,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:34:15,533 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 [2020-10-26 20:34:15,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:34:15,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:34:15,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:34:15,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:34:15,564 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:34:15,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:34:15,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:34:15,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:34:15,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:34:15,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:34:15,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:34:15,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:34:15,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:34:15,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:34:15,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:34:15,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:34:15,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:34:15,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:34:15,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:34:15,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:34:15,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:34:15,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:34:15,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:34:15,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:34:15,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:34:15,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:34:15,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:34:15,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:34:15,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:34:15,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:34:16,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:34:16,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:34:16,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:34:16,056 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:34:16,057 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:34:16,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-10-26 20:34:16,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f47f044d/1af8b8e1d1d1446e93521661481eb8ea/FLAG67dcfc5aa [2020-10-26 20:34:16,913 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:34:16,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-10-26 20:34:16,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f47f044d/1af8b8e1d1d1446e93521661481eb8ea/FLAG67dcfc5aa [2020-10-26 20:34:17,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f47f044d/1af8b8e1d1d1446e93521661481eb8ea [2020-10-26 20:34:17,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:34:17,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:34:17,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:34:17,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:34:17,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:34:17,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:17,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14315246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17, skipping insertion in model container [2020-10-26 20:34:17,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:17,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:34:17,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:34:17,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:34:17,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:34:17,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:34:17,907 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:34:17,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17 WrapperNode [2020-10-26 20:34:17,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:34:17,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:34:17,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:34:17,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:34:17,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:17,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:17,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:17,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:18,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:18,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:18,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (1/1) ... [2020-10-26 20:34:18,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:34:18,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:34:18,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:34:18,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:34:18,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (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 [2020-10-26 20:34:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:34:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:34:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:34:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:34:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:34:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:34:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:34:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:34:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:34:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:34:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:34:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:34:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:34:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:34:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:34:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:34:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:34:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:34:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:34:19,513 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:34:19,514 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:34:19,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:34:19 BoogieIcfgContainer [2020-10-26 20:34:19,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:34:19,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:34:19,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:34:19,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:34:19,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:34:17" (1/3) ... [2020-10-26 20:34:19,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0c032b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:34:19, skipping insertion in model container [2020-10-26 20:34:19,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:34:17" (2/3) ... [2020-10-26 20:34:19,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0c032b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:34:19, skipping insertion in model container [2020-10-26 20:34:19,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:34:19" (3/3) ... [2020-10-26 20:34:19,529 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2020-10-26 20:34:19,544 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:34:19,551 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:34:19,576 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:34:19,617 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:34:19,617 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:34:19,617 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:34:19,617 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:34:19,618 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:34:19,618 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:34:19,618 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:34:19,618 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:34:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:34:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-26 20:34:19,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:19,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:19,689 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:19,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:19,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1561616849, now seen corresponding path program 1 times [2020-10-26 20:34:19,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:19,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886277942] [2020-10-26 20:34:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:20,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:22,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:22,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 20:34:22,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:22,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2243 [2020-10-26 20:34:22,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-26 20:34:22,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:34:22,593 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:22,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:22,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:22,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:22,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:22,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:34:22,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:22,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:34:22,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886277942] [2020-10-26 20:34:22,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:34:22,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:34:22,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988211713] [2020-10-26 20:34:22,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:34:22,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:22,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:34:22,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:34:22,799 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:34:22,963 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:24,764 INFO L93 Difference]: Finished difference Result 562 states and 961 transitions. [2020-10-26 20:34:24,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:24,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-10-26 20:34:24,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:24,782 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:34:24,782 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:34:24,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:34:24,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:34:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2020-10-26 20:34:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-26 20:34:24,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 393 transitions. [2020-10-26 20:34:24,875 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 393 transitions. Word has length 112 [2020-10-26 20:34:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:24,876 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 393 transitions. [2020-10-26 20:34:24,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:34:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 393 transitions. [2020-10-26 20:34:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-26 20:34:24,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:24,885 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:24,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:34:24,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:24,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:24,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1150400273, now seen corresponding path program 1 times [2020-10-26 20:34:24,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:24,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928598728] [2020-10-26 20:34:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:25,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:25,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:27,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 20:34:27,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:27,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2140 [2020-10-26 20:34:27,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 20:34:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:27,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:27,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:27,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:27,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:27,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:27,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:27,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:27,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:34:27,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928598728] [2020-10-26 20:34:27,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:27,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:27,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666209306] [2020-10-26 20:34:27,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:27,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:27,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:27,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:27,445 INFO L87 Difference]: Start difference. First operand 283 states and 393 transitions. Second operand 6 states. [2020-10-26 20:34:27,591 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:29,099 INFO L93 Difference]: Finished difference Result 842 states and 1194 transitions. [2020-10-26 20:34:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:29,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-10-26 20:34:29,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:29,119 INFO L225 Difference]: With dead ends: 842 [2020-10-26 20:34:29,119 INFO L226 Difference]: Without dead ends: 565 [2020-10-26 20:34:29,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-26 20:34:29,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-26 20:34:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-26 20:34:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 764 transitions. [2020-10-26 20:34:29,182 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 764 transitions. Word has length 120 [2020-10-26 20:34:29,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:29,183 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 764 transitions. [2020-10-26 20:34:29,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:29,184 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 764 transitions. [2020-10-26 20:34:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-26 20:34:29,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:29,193 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:29,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:34:29,194 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:29,194 INFO L82 PathProgramCache]: Analyzing trace with hash 81867314, now seen corresponding path program 1 times [2020-10-26 20:34:29,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:29,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841533641] [2020-10-26 20:34:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-26 20:34:33,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:33,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3826 [2020-10-26 20:34:33,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:34:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:33,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:33,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:34:33,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:33,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:33,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:34:33,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:33,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:33,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:33,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:34:33,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:34:33,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841533641] [2020-10-26 20:34:33,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:34:33,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:34:33,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567255041] [2020-10-26 20:34:33,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:33,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:33,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:33,337 INFO L87 Difference]: Start difference. First operand 559 states and 764 transitions. Second operand 7 states. [2020-10-26 20:34:35,322 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:35,379 INFO L93 Difference]: Finished difference Result 1708 states and 2448 transitions. [2020-10-26 20:34:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:35,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-26 20:34:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:35,390 INFO L225 Difference]: With dead ends: 1708 [2020-10-26 20:34:35,391 INFO L226 Difference]: Without dead ends: 1155 [2020-10-26 20:34:35,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:35,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2020-10-26 20:34:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1123. [2020-10-26 20:34:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-10-26 20:34:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1494 transitions. [2020-10-26 20:34:35,460 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1494 transitions. Word has length 121 [2020-10-26 20:34:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:35,460 INFO L481 AbstractCegarLoop]: Abstraction has 1123 states and 1494 transitions. [2020-10-26 20:34:35,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1494 transitions. [2020-10-26 20:34:35,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-26 20:34:35,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:35,469 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:35,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:34:35,470 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:35,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:35,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1229243089, now seen corresponding path program 1 times [2020-10-26 20:34:35,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:35,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145882524] [2020-10-26 20:34:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:40,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 20:34:40,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-26 20:34:40,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:34:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 20:34:40,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,737 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:40,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:40,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:40,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:40,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:40,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:40,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:40,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:40,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:40,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:40,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:40,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:40,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:40,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:40,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:40,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:34:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:40,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:40,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:40,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:34:40,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:40,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:40,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:40,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:40,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:34:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:40,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:40,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:40,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:40,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:40,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:40,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:40,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:34:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,960 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 36 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:40,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145882524] [2020-10-26 20:34:40,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:40,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:40,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277796251] [2020-10-26 20:34:40,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:40,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:40,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:40,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:40,963 INFO L87 Difference]: Start difference. First operand 1123 states and 1494 transitions. Second operand 8 states. [2020-10-26 20:34:41,734 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:45,200 INFO L93 Difference]: Finished difference Result 4645 states and 6620 transitions. [2020-10-26 20:34:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:34:45,201 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2020-10-26 20:34:45,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:45,227 INFO L225 Difference]: With dead ends: 4645 [2020-10-26 20:34:45,227 INFO L226 Difference]: Without dead ends: 3528 [2020-10-26 20:34:45,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:34:45,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2020-10-26 20:34:45,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 2106. [2020-10-26 20:34:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2106 states. [2020-10-26 20:34:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2775 transitions. [2020-10-26 20:34:45,361 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2775 transitions. Word has length 144 [2020-10-26 20:34:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:45,361 INFO L481 AbstractCegarLoop]: Abstraction has 2106 states and 2775 transitions. [2020-10-26 20:34:45,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2775 transitions. [2020-10-26 20:34:45,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-26 20:34:45,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:45,370 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:45,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:34:45,370 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:45,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:45,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1294164884, now seen corresponding path program 1 times [2020-10-26 20:34:45,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:45,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353900435] [2020-10-26 20:34:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:45,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-26 20:34:47,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:48,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2589 [2020-10-26 20:34:48,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:34:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:48,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:48,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:48,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:48,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:48,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:48,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:48,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:34:48,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:48,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:48,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:34:48,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:34:48,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353900435] [2020-10-26 20:34:48,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:48,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:48,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453922807] [2020-10-26 20:34:48,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:48,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:48,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:48,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:48,410 INFO L87 Difference]: Start difference. First operand 2106 states and 2775 transitions. Second operand 7 states. [2020-10-26 20:34:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:50,237 INFO L93 Difference]: Finished difference Result 4252 states and 5673 transitions. [2020-10-26 20:34:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:34:50,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-10-26 20:34:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:50,253 INFO L225 Difference]: With dead ends: 4252 [2020-10-26 20:34:50,253 INFO L226 Difference]: Without dead ends: 2287 [2020-10-26 20:34:50,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-10-26 20:34:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2249. [2020-10-26 20:34:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2249 states. [2020-10-26 20:34:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 2863 transitions. [2020-10-26 20:34:50,355 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 2863 transitions. Word has length 143 [2020-10-26 20:34:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:50,355 INFO L481 AbstractCegarLoop]: Abstraction has 2249 states and 2863 transitions. [2020-10-26 20:34:50,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 2863 transitions. [2020-10-26 20:34:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-26 20:34:50,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:50,363 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:50,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:34:50,364 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash -557407540, now seen corresponding path program 1 times [2020-10-26 20:34:50,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:50,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727537546] [2020-10-26 20:34:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:52,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-26 20:34:52,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2440 [2020-10-26 20:34:52,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:52,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:34:52,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:52,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:53,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:53,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:53,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:34:53,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-26 20:34:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:53,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:53,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:34:53,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727537546] [2020-10-26 20:34:53,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:53,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:53,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682692662] [2020-10-26 20:34:53,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:53,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:53,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:53,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:53,203 INFO L87 Difference]: Start difference. First operand 2249 states and 2863 transitions. Second operand 8 states. [2020-10-26 20:34:54,373 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:55,169 INFO L93 Difference]: Finished difference Result 4649 states and 5858 transitions. [2020-10-26 20:34:55,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:55,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2020-10-26 20:34:55,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:55,191 INFO L225 Difference]: With dead ends: 4649 [2020-10-26 20:34:55,191 INFO L226 Difference]: Without dead ends: 2263 [2020-10-26 20:34:55,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:55,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-10-26 20:34:55,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2126. [2020-10-26 20:34:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2020-10-26 20:34:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2633 transitions. [2020-10-26 20:34:55,289 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2633 transitions. Word has length 147 [2020-10-26 20:34:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:55,290 INFO L481 AbstractCegarLoop]: Abstraction has 2126 states and 2633 transitions. [2020-10-26 20:34:55,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2633 transitions. [2020-10-26 20:34:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-26 20:34:55,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:55,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:55,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:34:55,298 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash 85194478, now seen corresponding path program 1 times [2020-10-26 20:34:55,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:55,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795665671] [2020-10-26 20:34:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:55,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:55,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-26 20:34:59,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:59,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4125 [2020-10-26 20:34:59,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:34:59,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:59,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:59,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:59,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:59,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:59,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:34:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:59,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:34:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:59,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:59,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:59,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795665671] [2020-10-26 20:34:59,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:59,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:59,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205504933] [2020-10-26 20:34:59,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:59,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:59,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:59,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:59,970 INFO L87 Difference]: Start difference. First operand 2126 states and 2633 transitions. Second operand 8 states. [2020-10-26 20:35:00,166 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:35:01,612 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:35:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:02,040 INFO L93 Difference]: Finished difference Result 4681 states and 5780 transitions. [2020-10-26 20:35:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:35:02,044 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-10-26 20:35:02,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:02,058 INFO L225 Difference]: With dead ends: 4681 [2020-10-26 20:35:02,058 INFO L226 Difference]: Without dead ends: 2410 [2020-10-26 20:35:02,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:35:02,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2020-10-26 20:35:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2265. [2020-10-26 20:35:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2265 states. [2020-10-26 20:35:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2768 transitions. [2020-10-26 20:35:02,143 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2768 transitions. Word has length 155 [2020-10-26 20:35:02,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:02,143 INFO L481 AbstractCegarLoop]: Abstraction has 2265 states and 2768 transitions. [2020-10-26 20:35:02,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:02,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2768 transitions. [2020-10-26 20:35:02,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-26 20:35:02,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:02,151 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:02,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:35:02,151 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:02,152 INFO L82 PathProgramCache]: Analyzing trace with hash -274800721, now seen corresponding path program 1 times [2020-10-26 20:35:02,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:02,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734078778] [2020-10-26 20:35:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:02,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:02,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:02,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:05,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:05,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3533 [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:35:05,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:05,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:05,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:05,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:05,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:05,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:05,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:05,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:05,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:05,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:05,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:05,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:35:05,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:05,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:05,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:35:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:05,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:06,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:35:06,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:06,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:06,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:06,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:35:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:06,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:06,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:35:06,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734078778] [2020-10-26 20:35:06,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:06,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:06,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003241649] [2020-10-26 20:35:06,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:06,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:06,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:06,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:06,190 INFO L87 Difference]: Start difference. First operand 2265 states and 2768 transitions. Second operand 8 states. [2020-10-26 20:35:06,331 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:35:07,407 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:35:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:08,170 INFO L93 Difference]: Finished difference Result 4683 states and 5716 transitions. [2020-10-26 20:35:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:35:08,171 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 158 [2020-10-26 20:35:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:08,181 INFO L225 Difference]: With dead ends: 4683 [2020-10-26 20:35:08,181 INFO L226 Difference]: Without dead ends: 2257 [2020-10-26 20:35:08,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:35:08,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2020-10-26 20:35:08,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2104. [2020-10-26 20:35:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2104 states. [2020-10-26 20:35:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 2390 transitions. [2020-10-26 20:35:08,254 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 2390 transitions. Word has length 158 [2020-10-26 20:35:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:08,254 INFO L481 AbstractCegarLoop]: Abstraction has 2104 states and 2390 transitions. [2020-10-26 20:35:08,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 2390 transitions. [2020-10-26 20:35:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:35:08,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:08,261 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:08,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:35:08,261 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:08,262 INFO L82 PathProgramCache]: Analyzing trace with hash 827775921, now seen corresponding path program 1 times [2020-10-26 20:35:08,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:08,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717986603] [2020-10-26 20:35:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:09,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:09,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 20:35:10,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:35:10,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2436 [2020-10-26 20:35:10,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:10,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:10,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:10,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:10,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:10,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:35:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:35:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:10,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:35:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:10,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:10,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:10,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:35:11,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717986603] [2020-10-26 20:35:11,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:11,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:11,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048648564] [2020-10-26 20:35:11,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:11,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:11,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:11,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:11,033 INFO L87 Difference]: Start difference. First operand 2104 states and 2390 transitions. Second operand 8 states. [2020-10-26 20:35:12,750 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:35:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:12,786 INFO L93 Difference]: Finished difference Result 5183 states and 6008 transitions. [2020-10-26 20:35:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:35:12,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-26 20:35:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:12,801 INFO L225 Difference]: With dead ends: 5183 [2020-10-26 20:35:12,802 INFO L226 Difference]: Without dead ends: 3220 [2020-10-26 20:35:12,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2020-10-26 20:35:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3063. [2020-10-26 20:35:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3063 states. [2020-10-26 20:35:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 3529 transitions. [2020-10-26 20:35:12,938 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 3529 transitions. Word has length 168 [2020-10-26 20:35:12,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:12,939 INFO L481 AbstractCegarLoop]: Abstraction has 3063 states and 3529 transitions. [2020-10-26 20:35:12,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 3529 transitions. [2020-10-26 20:35:12,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-26 20:35:12,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:12,954 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:12,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:35:12,954 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:12,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1999541997, now seen corresponding path program 1 times [2020-10-26 20:35:12,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:12,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807233391] [2020-10-26 20:35:12,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:12,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:17,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:17,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-26 20:35:17,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 20:35:17,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:35:17,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:35:17,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:18,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:18,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:35:18,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:35:18,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:18,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:35:18,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:35:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:18,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:18,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:35:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:35:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:18,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:18,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:35:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:35:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:18,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:18,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-26 20:35:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:18,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:18,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:18,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:35:18,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:18,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 20:35:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:18,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:35:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,541 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 108 proven. 49 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-10-26 20:35:18,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807233391] [2020-10-26 20:35:18,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:18,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:18,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807491643] [2020-10-26 20:35:18,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:18,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:18,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:18,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:18,549 INFO L87 Difference]: Start difference. First operand 3063 states and 3529 transitions. Second operand 7 states. [2020-10-26 20:35:18,686 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:19,284 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:35:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:20,068 INFO L93 Difference]: Finished difference Result 6138 states and 7107 transitions. [2020-10-26 20:35:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:35:20,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-10-26 20:35:20,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:20,084 INFO L225 Difference]: With dead ends: 6138 [2020-10-26 20:35:20,084 INFO L226 Difference]: Without dead ends: 3216 [2020-10-26 20:35:20,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:35:20,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2020-10-26 20:35:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 3210. [2020-10-26 20:35:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3210 states. [2020-10-26 20:35:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 3692 transitions. [2020-10-26 20:35:20,188 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 3692 transitions. Word has length 238 [2020-10-26 20:35:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:20,188 INFO L481 AbstractCegarLoop]: Abstraction has 3210 states and 3692 transitions. [2020-10-26 20:35:20,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:20,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 3692 transitions. [2020-10-26 20:35:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-26 20:35:20,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:20,201 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:20,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:35:20,201 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:20,202 INFO L82 PathProgramCache]: Analyzing trace with hash 988532107, now seen corresponding path program 2 times [2020-10-26 20:35:20,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:20,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498155884] [2020-10-26 20:35:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:20,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:35:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,407 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:35:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:25,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:25,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:25,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:35:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:25,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:35:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:35:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:25,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:25,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:35:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:35:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:25,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:25,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:35:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:25,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 20:35:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:25,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:25,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:25,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 20:35:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:25,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:35:25,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:35:25,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:25,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 20:35:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:25,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:35:25,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:35:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 138 proven. 61 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-26 20:35:25,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498155884] [2020-10-26 20:35:25,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:25,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:25,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016509683] [2020-10-26 20:35:25,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:25,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:25,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:25,862 INFO L87 Difference]: Start difference. First operand 3210 states and 3692 transitions. Second operand 7 states. [2020-10-26 20:35:26,000 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:35:27,334 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:35:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:27,684 INFO L93 Difference]: Finished difference Result 6704 states and 7750 transitions. [2020-10-26 20:35:27,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:35:27,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-10-26 20:35:27,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:27,708 INFO L225 Difference]: With dead ends: 6704 [2020-10-26 20:35:27,708 INFO L226 Difference]: Without dead ends: 3635 [2020-10-26 20:35:27,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:35:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2020-10-26 20:35:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3625. [2020-10-26 20:35:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-26 20:35:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 4152 transitions. [2020-10-26 20:35:27,827 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 4152 transitions. Word has length 246 [2020-10-26 20:35:27,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:27,827 INFO L481 AbstractCegarLoop]: Abstraction has 3625 states and 4152 transitions. [2020-10-26 20:35:27,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 4152 transitions. [2020-10-26 20:35:27,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-26 20:35:27,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:27,840 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:27,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:35:27,841 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:27,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:27,841 INFO L82 PathProgramCache]: Analyzing trace with hash -217971312, now seen corresponding path program 1 times [2020-10-26 20:35:27,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:27,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546590800] [2020-10-26 20:35:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:27,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:27,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:28,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:30,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:35:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:35:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:35:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:33,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:33,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:35:33,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:33,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:33,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:33,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 20:35:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 20:35:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:33,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:35:33,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:35:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-26 20:35:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:33,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:33,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:35:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:35:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 181 proven. 108 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-26 20:35:33,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546590800] [2020-10-26 20:35:33,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:33,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:33,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243321531] [2020-10-26 20:35:33,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:33,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:33,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:33,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:33,497 INFO L87 Difference]: Start difference. First operand 3625 states and 4152 transitions. Second operand 8 states. [2020-10-26 20:35:33,633 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:35,189 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:35,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:35,203 INFO L93 Difference]: Finished difference Result 7550 states and 8726 transitions. [2020-10-26 20:35:35,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:35,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 269 [2020-10-26 20:35:35,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:35,223 INFO L225 Difference]: With dead ends: 7550 [2020-10-26 20:35:35,223 INFO L226 Difference]: Without dead ends: 3929 [2020-10-26 20:35:35,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:35:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2020-10-26 20:35:35,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3909. [2020-10-26 20:35:35,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3909 states. [2020-10-26 20:35:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 4492 transitions. [2020-10-26 20:35:35,338 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 4492 transitions. Word has length 269 [2020-10-26 20:35:35,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:35,338 INFO L481 AbstractCegarLoop]: Abstraction has 3909 states and 4492 transitions. [2020-10-26 20:35:35,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 4492 transitions. [2020-10-26 20:35:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-26 20:35:35,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:35,353 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:35,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:35:35,353 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:35,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1358639704, now seen corresponding path program 1 times [2020-10-26 20:35:35,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:35,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52461324] [2020-10-26 20:35:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:35,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:35,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:35,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-26 20:35:40,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:35:40,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-26 20:35:40,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:35:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,578 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:35:40,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:40,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:40,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:40,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:40,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:40,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:35:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:40,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:35:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:35:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:40,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:35:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:40,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:40,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:40,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 20:35:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:40,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:35:40,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:35:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:40,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-26 20:35:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:40,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:35:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:40,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 208 proven. 36 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2020-10-26 20:35:40,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52461324] [2020-10-26 20:35:40,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:40,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:40,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262559087] [2020-10-26 20:35:40,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:40,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:40,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:40,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:40,936 INFO L87 Difference]: Start difference. First operand 3909 states and 4492 transitions. Second operand 7 states. [2020-10-26 20:35:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:42,664 INFO L93 Difference]: Finished difference Result 7824 states and 9030 transitions. [2020-10-26 20:35:42,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:42,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 285 [2020-10-26 20:35:42,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:42,691 INFO L225 Difference]: With dead ends: 7824 [2020-10-26 20:35:42,692 INFO L226 Difference]: Without dead ends: 3915 [2020-10-26 20:35:42,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:35:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2020-10-26 20:35:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3899. [2020-10-26 20:35:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3899 states. [2020-10-26 20:35:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 4363 transitions. [2020-10-26 20:35:42,807 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 4363 transitions. Word has length 285 [2020-10-26 20:35:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:42,807 INFO L481 AbstractCegarLoop]: Abstraction has 3899 states and 4363 transitions. [2020-10-26 20:35:42,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 4363 transitions. [2020-10-26 20:35:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-26 20:35:42,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:42,822 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:35:42,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:35:42,822 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:42,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1015898656, now seen corresponding path program 1 times [2020-10-26 20:35:42,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:42,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149517658] [2020-10-26 20:35:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:44,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:45,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:47,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-26 20:35:47,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 20:35:47,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:35:47,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-26 20:35:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:48,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:35:48,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:35:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:48,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 20:35:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:48,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:35:48,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:48,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-26 20:35:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 20:35:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:48,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:48,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:48,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:35:48,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:35:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 248 proven. 36 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-26 20:35:48,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149517658] [2020-10-26 20:35:48,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:48,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:48,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590063686] [2020-10-26 20:35:48,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:48,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:48,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:48,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:48,471 INFO L87 Difference]: Start difference. First operand 3899 states and 4363 transitions. Second operand 7 states. [2020-10-26 20:35:49,353 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:49,529 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:35:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:50,354 INFO L93 Difference]: Finished difference Result 7526 states and 8442 transitions. [2020-10-26 20:35:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:50,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 325 [2020-10-26 20:35:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:50,367 INFO L225 Difference]: With dead ends: 7526 [2020-10-26 20:35:50,367 INFO L226 Difference]: Without dead ends: 3768 [2020-10-26 20:35:50,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:50,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2020-10-26 20:35:50,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3760. [2020-10-26 20:35:50,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3760 states. [2020-10-26 20:35:50,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 4167 transitions. [2020-10-26 20:35:50,469 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 4167 transitions. Word has length 325 [2020-10-26 20:35:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:50,470 INFO L481 AbstractCegarLoop]: Abstraction has 3760 states and 4167 transitions. [2020-10-26 20:35:50,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:50,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 4167 transitions. [2020-10-26 20:35:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-26 20:35:50,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:50,485 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:35:50,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:35:50,485 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:50,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:50,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1825663831, now seen corresponding path program 2 times [2020-10-26 20:35:50,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:50,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486330093] [2020-10-26 20:35:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:50,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:52,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:35:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 20:35:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:55,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:55,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:55,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:55,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:35:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-26 20:35:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:55,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:35:55,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:35:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:56,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-26 20:35:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:56,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:56,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:56,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:56,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:35:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:56,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 420 proven. 37 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-10-26 20:35:56,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486330093] [2020-10-26 20:35:56,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:56,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:56,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361355103] [2020-10-26 20:35:56,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:56,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:56,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:56,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:56,108 INFO L87 Difference]: Start difference. First operand 3760 states and 4167 transitions. Second operand 8 states. [2020-10-26 20:35:56,238 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:35:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:57,824 INFO L93 Difference]: Finished difference Result 7661 states and 8519 transitions. [2020-10-26 20:35:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:35:57,826 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 338 [2020-10-26 20:35:57,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:57,840 INFO L225 Difference]: With dead ends: 7661 [2020-10-26 20:35:57,840 INFO L226 Difference]: Without dead ends: 4042 [2020-10-26 20:35:57,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2020-10-26 20:35:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 3897. [2020-10-26 20:35:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3897 states. [2020-10-26 20:35:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 4310 transitions. [2020-10-26 20:35:57,944 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 4310 transitions. Word has length 338 [2020-10-26 20:35:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:57,945 INFO L481 AbstractCegarLoop]: Abstraction has 3897 states and 4310 transitions. [2020-10-26 20:35:57,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:57,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 4310 transitions. [2020-10-26 20:35:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-26 20:35:57,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:57,960 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:35:57,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:35:57,961 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:57,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:57,961 INFO L82 PathProgramCache]: Analyzing trace with hash 283496532, now seen corresponding path program 1 times [2020-10-26 20:35:57,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:57,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181588863] [2020-10-26 20:35:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:58,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:01,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 397 [2020-10-26 20:36:03,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-26 20:36:03,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-26 20:36:03,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:36:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-26 20:36:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:03,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:03,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:03,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:03,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:03,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:36:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-26 20:36:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-26 20:36:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:03,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:36:03,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:36:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-26 20:36:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 447 proven. 69 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-10-26 20:36:03,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181588863] [2020-10-26 20:36:03,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:03,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:03,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118308375] [2020-10-26 20:36:03,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:03,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:03,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:03,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:03,607 INFO L87 Difference]: Start difference. First operand 3897 states and 4310 transitions. Second operand 8 states. [2020-10-26 20:36:03,816 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:36:05,144 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:05,934 INFO L93 Difference]: Finished difference Result 7759 states and 8607 transitions. [2020-10-26 20:36:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:05,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 371 [2020-10-26 20:36:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:05,938 INFO L225 Difference]: With dead ends: 7759 [2020-10-26 20:36:05,938 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:36:05,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:36:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:36:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:36:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:36:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:36:05,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2020-10-26 20:36:05,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:05,962 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:36:05,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:05,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:36:05,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:36:05,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:36:05,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:36:07,726 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 210 [2020-10-26 20:36:08,207 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 210 [2020-10-26 20:36:08,395 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 36 [2020-10-26 20:36:10,489 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 242 DAG size of output: 77 [2020-10-26 20:36:11,753 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 194 DAG size of output: 65 [2020-10-26 20:36:12,308 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-26 20:36:13,636 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 194 DAG size of output: 65 [2020-10-26 20:36:13,641 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:36:13,641 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:36:13,641 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:36:13,641 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:36:13,642 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:36:13,642 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:36:13,642 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,643 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:36:13,644 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:36:13,645 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,646 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:36:13,647 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,648 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:36:13,649 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:36:13,650 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,651 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:36:13,652 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:36:13,653 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,654 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,655 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse13 (= ~a17~0 |old(~a17~0)|)) (.cse14 (= ~a7~0 |old(~a7~0)|)) (.cse15 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= ~a20~0 |old(~a20~0)|)) (.cse1 (= ~a16~0 |old(~a16~0)|)) (.cse2 (= ~a8~0 |old(~a8~0)|))) (let ((.cse10 (not (= |old(~a20~0)| 1))) (.cse5 (= ~a7~0 0)) (.cse9 (not (= |old(~a7~0)| 0))) (.cse3 (<= ~a21~0 1)) (.cse4 (<= 1 ~a21~0)) (.cse18 (not (<= |old(~a16~0)| 5))) (.cse12 (not (= |old(~a7~0)| 1))) (.cse11 (and .cse13 .cse14 .cse15 .cse0 (not (= ~a8~0 15)) .cse1 .cse2)) (.cse6 (not (<= |old(~a21~0)| 1))) (.cse7 (not (<= 1 |old(~a21~0)|))) (.cse8 (= 15 |old(~a8~0)|)) (.cse16 (= ~a16~0 4)) (.cse17 (not (= 4 |old(~a16~0)|)))) (and (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a17~0 1) .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse6 .cse7 .cse8 .cse10 .cse11) (or .cse12 .cse8 (and .cse13 .cse14 .cse0 .cse15 .cse1 .cse2) .cse10) (or (and .cse13 .cse0 .cse2 .cse3 .cse16 .cse4 .cse5) .cse6 .cse7 .cse9 .cse17) (or .cse6 .cse7 (and .cse14 .cse13 .cse15 .cse0 .cse2 (= 5 ~a16~0)) .cse8 (not (= 5 |old(~a16~0)|))) (or (not (<= 5 |old(~a16~0)|)) .cse6 .cse7 (and .cse13 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse9) (or .cse6 .cse18 .cse7 .cse12 (and .cse14 .cse13 .cse0 .cse1 .cse2 .cse3 .cse4)) (or .cse18 .cse12 .cse8 .cse11) (or .cse6 .cse7 .cse8 (and .cse14 .cse13 .cse15 .cse0 .cse2 .cse16) .cse17)))) [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:36:13,656 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,657 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L270 CegarLoopResult]: At program point L493(line 493) the Hoare annotation is: (let ((.cse3 (not (= 4 |old(~a16~0)|))) (.cse4 (not (= |old(~a7~0)| 0))) (.cse5 (not (= |old(~a20~0)| 1))) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse7 (not (<= |old(~a16~0)| 5))) (.cse6 (not (= |old(~a7~0)| 1))) (.cse2 (= 15 |old(~a8~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or (not (<= 5 |old(~a16~0)|)) .cse0 .cse1 .cse4) (or (not (= |old(~a17~0)| 1)) .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse1 .cse2 (not (= 5 |old(~a16~0)|))) (or .cse0 .cse1 .cse2 .cse5) (or .cse6 .cse2 .cse5) (or .cse0 .cse7 .cse1 .cse6) (or .cse7 .cse6 .cse2))) [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L493-1(line 493) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:36:13,658 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:36:13,659 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:36:13,660 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:36:13,661 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:36:13,661 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:36:13,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:36:13,661 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a21~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:36:13,661 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:36:13,661 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse6 (= ~a7~0 1)) (.cse8 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse9 (= ~a20~0 1)) (.cse0 (<= 15 |old(~a8~0)|)) (.cse1 (<= |old(~a8~0)| 15)) (.cse7 (not (= ~a8~0 15))) (.cse2 (<= ~a21~0 1)) (.cse4 (<= 1 ~a21~0)) (.cse5 (= ~a7~0 0))) (or (not (<= |old(~a21~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse6 .cse7 .cse9) (and .cse0 .cse1 .cse2 .cse4 (<= 5 ~a16~0) .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse4 (= 5 ~a16~0)) (and .cse0 .cse1 .cse6 .cse8 .cse2 .cse4) (and .cse0 .cse1 .cse7 .cse2 .cse3 .cse4) (not (= |old(~a17~0)| 1)) (not (<= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse7 .cse9 .cse2 .cse4) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse7 .cse2 .cse4 .cse5 (= ~a17~0 1)) (not (= |old(~a7~0)| 0)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse2 .cse4 .cse5))) [2020-10-26 20:36:13,661 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:36:13,661 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:36:13,662 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse6 (= ~a7~0 1)) (.cse8 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse9 (= ~a20~0 1)) (.cse0 (<= 15 |old(~a8~0)|)) (.cse1 (<= |old(~a8~0)| 15)) (.cse7 (not (= ~a8~0 15))) (.cse2 (<= ~a21~0 1)) (.cse4 (<= 1 ~a21~0)) (.cse5 (= ~a7~0 0))) (or (not (<= |old(~a21~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse6 .cse7 .cse9) (and .cse0 .cse1 .cse2 .cse4 (<= 5 ~a16~0) .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse4 (= 5 ~a16~0)) (and .cse0 .cse1 .cse6 .cse8 .cse2 .cse4) (and .cse0 .cse1 .cse7 .cse2 .cse3 .cse4) (not (= |old(~a17~0)| 1)) (not (<= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse7 .cse9 .cse2 .cse4) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse7 .cse2 .cse4 .cse5 (= ~a17~0 1)) (not (= |old(~a7~0)| 0)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse2 .cse4 .cse5))) [2020-10-26 20:36:13,662 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:36:13,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:36:13 BoogieIcfgContainer [2020-10-26 20:36:13,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:36:13,710 INFO L168 Benchmark]: Toolchain (without parser) took 116572.86 ms. Allocated memory was 151.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 124.0 MB in the beginning and 561.3 MB in the end (delta: -437.3 MB). Peak memory consumption was 758.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:13,710 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:36:13,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.96 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 129.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:13,711 INFO L168 Benchmark]: Boogie Preprocessor took 143.21 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 124.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:13,712 INFO L168 Benchmark]: RCFGBuilder took 1462.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 101.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:13,715 INFO L168 Benchmark]: TraceAbstraction took 114185.34 ms. Allocated memory was 151.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 101.3 MB in the beginning and 561.3 MB in the end (delta: -460.0 MB). Peak memory consumption was 734.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:13,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 766.96 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 129.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 143.21 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 124.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1462.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 101.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 114185.34 ms. Allocated memory was 151.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 101.3 MB in the beginning and 561.3 MB in the end (delta: -460.0 MB). Peak memory consumption was 734.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((((!(\old(a21) <= 1) || (((((15 <= \old(a8) && \old(a8) <= 15) && a21 <= 1) && a16 == 4) && 1 <= a21) && a7 == 0)) || !(\old(a20) == 1)) || ((((15 <= \old(a8) && \old(a8) <= 15) && a7 == 1) && !(a8 == 15)) && a16 <= 5)) || ((((15 <= \old(a8) && \old(a8) <= 15) && a7 == 1) && !(a8 == 15)) && a20 == 1)) || (((((15 <= \old(a8) && \old(a8) <= 15) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a7 == 0)) || (((((15 <= \old(a8) && \old(a8) <= 15) && !(a8 == 15)) && a21 <= 1) && 1 <= a21) && 5 == a16)) || (((((15 <= \old(a8) && \old(a8) <= 15) && a7 == 1) && a16 <= 5) && a21 <= 1) && 1 <= a21)) || (((((15 <= \old(a8) && \old(a8) <= 15) && !(a8 == 15)) && a21 <= 1) && a16 == 4) && 1 <= a21)) || !(\old(a17) == 1)) || !(1 <= \old(a21))) || (((((15 <= \old(a8) && \old(a8) <= 15) && !(a8 == 15)) && a20 == 1) && a21 <= 1) && 1 <= a21)) || !(5 == \old(a16))) || ((((((15 <= \old(a8) && \old(a8) <= 15) && !(a8 == 15)) && a21 <= 1) && 1 <= a21) && a7 == 0) && a17 == 1)) || !(\old(a7) == 0)) || ((((((a17 == \old(a17) && a20 == \old(a20)) && a16 == \old(a16)) && a8 == \old(a8)) && a21 <= 1) && 1 <= a21) && a7 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 106.3s, OverallIterations: 16, TraceHistogramMax: 9, AutomataDifference: 32.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 442 SDtfs, 7297 SDslu, 663 SDs, 0 SdLazy, 13029 SolverSat, 1837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 372 GetRequests, 207 SyntacticMatches, 8 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3909occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 2299 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 644 PreInvPairs, 718 NumberOfFragments, 1077 HoareAnnotationTreeSize, 644 FomulaSimplifications, 169690 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 15987 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 69.9s InterpolantComputationTime, 3340 NumberOfCodeBlocks, 3340 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3324 ConstructedInterpolants, 0 QuantifiedInterpolants, 2167896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3353/3826 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...