/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/Problem14_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:50:25,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:50:25,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:50:25,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:50:25,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:50:25,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:50:25,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:50:25,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:50:25,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:50:25,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:50:25,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:50:25,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:50:25,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:50:25,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:50:25,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:50:25,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:50:25,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:50:25,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:50:25,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:50:25,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:50:25,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:50:25,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:50:25,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:50:25,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:50:25,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:50:25,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:50:25,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:50:25,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:50:25,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:50:25,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:50:25,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:50:25,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:50:25,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:50:25,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:50:25,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:50:25,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:50:25,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:50:25,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:50:25,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:50:25,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:50:25,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:50:25,407 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 [2020-10-28 12:50:25,435 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:50:25,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:50:25,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:50:25,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:50:25,439 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:50:25,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:50:25,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:50:25,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:50:25,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:50:25,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:50:25,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:50:25,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:50:25,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:50:25,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:50:25,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:50:25,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:50:25,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:50:25,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:50:25,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:50:25,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:50:25,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:50:25,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:50:25,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:50:25,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:50:25,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:50:25,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:50:25,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:50:25,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:50:25,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:50:25,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:50:25,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:50:25,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:50:25,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:50:25,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:50:25,999 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:50:26,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label20.c [2020-10-28 12:50:26,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f55bbe573/9317fd6edb344ec1a5d811dfef9dac0d/FLAG7fbfb5bb8 [2020-10-28 12:50:26,870 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:50:26,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label20.c [2020-10-28 12:50:26,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f55bbe573/9317fd6edb344ec1a5d811dfef9dac0d/FLAG7fbfb5bb8 [2020-10-28 12:50:27,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f55bbe573/9317fd6edb344ec1a5d811dfef9dac0d [2020-10-28 12:50:27,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:50:27,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:50:27,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:50:27,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:50:27,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:50:27,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:27,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192283d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27, skipping insertion in model container [2020-10-28 12:50:27,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:27,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:50:27,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:50:27,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:50:27,629 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:50:27,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:50:27,901 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:50:27,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27 WrapperNode [2020-10-28 12:50:27,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:50:27,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:50:27,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:50:27,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:50:27,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:27,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:27,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:27,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:28,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:28,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:28,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (1/1) ... [2020-10-28 12:50:28,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:50:28,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:50:28,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:50:28,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:50:28,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (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 [2020-10-28 12:50:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:50:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:50:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:50:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:50:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:50:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:50:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:50:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:50:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:50:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:50:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:50:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:50:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:50:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:50:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:50:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:50:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:50:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:50:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:50:29,857 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:50:29,858 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:50:29,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:50:29 BoogieIcfgContainer [2020-10-28 12:50:29,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:50:29,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:50:29,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:50:29,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:50:29,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:50:27" (1/3) ... [2020-10-28 12:50:29,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57368d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:50:29, skipping insertion in model container [2020-10-28 12:50:29,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:27" (2/3) ... [2020-10-28 12:50:29,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57368d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:50:29, skipping insertion in model container [2020-10-28 12:50:29,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:50:29" (3/3) ... [2020-10-28 12:50:29,871 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label20.c [2020-10-28 12:50:29,884 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:50:29,890 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:50:29,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:50:29,938 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:50:29,938 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:50:29,938 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:50:29,938 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:50:29,938 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:50:29,939 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:50:29,939 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:50:29,939 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:50:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:50:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 12:50:29,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:29,975 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] [2020-10-28 12:50:29,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:29,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:29,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1481272762, now seen corresponding path program 1 times [2020-10-28 12:50:29,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:29,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611157836] [2020-10-28 12:50:29,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:30,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:30,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:30,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 687 [2020-10-28 12:50:30,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:30,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:50:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:50:31,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:31,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:31,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:31,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:31,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:50:31,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:31,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:31,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:31,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611157836] [2020-10-28 12:50:31,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:31,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:50:31,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270151177] [2020-10-28 12:50:31,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:50:31,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:31,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:50:31,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:50:31,336 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-28 12:50:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:33,940 INFO L93 Difference]: Finished difference Result 703 states and 1246 transitions. [2020-10-28 12:50:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:50:33,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-28 12:50:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:33,961 INFO L225 Difference]: With dead ends: 703 [2020-10-28 12:50:33,961 INFO L226 Difference]: Without dead ends: 381 [2020-10-28 12:50:33,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:50:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-28 12:50:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-28 12:50:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-28 12:50:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 553 transitions. [2020-10-28 12:50:34,071 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 553 transitions. Word has length 67 [2020-10-28 12:50:34,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:34,072 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 553 transitions. [2020-10-28 12:50:34,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:50:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 553 transitions. [2020-10-28 12:50:34,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-28 12:50:34,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:34,080 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:50:34,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:50:34,081 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:34,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:34,082 INFO L82 PathProgramCache]: Analyzing trace with hash -77381511, now seen corresponding path program 1 times [2020-10-28 12:50:34,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:34,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039210190] [2020-10-28 12:50:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 12:50:35,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:35,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-28 12:50:35,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:50:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:35,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:35,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:50:35,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:35,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:35,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:36,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:36,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:50:36,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 12:50:36,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:36,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:50:36,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:36,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039210190] [2020-10-28 12:50:36,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:36,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:50:36,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205813759] [2020-10-28 12:50:36,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:36,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:36,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:36,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:36,181 INFO L87 Difference]: Start difference. First operand 377 states and 553 transitions. Second operand 7 states. [2020-10-28 12:50:39,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:39,356 INFO L93 Difference]: Finished difference Result 1147 states and 1715 transitions. [2020-10-28 12:50:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:50:39,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2020-10-28 12:50:39,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:39,367 INFO L225 Difference]: With dead ends: 1147 [2020-10-28 12:50:39,367 INFO L226 Difference]: Without dead ends: 776 [2020-10-28 12:50:39,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-10-28 12:50:39,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 753. [2020-10-28 12:50:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-28 12:50:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 996 transitions. [2020-10-28 12:50:39,501 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 996 transitions. Word has length 136 [2020-10-28 12:50:39,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:39,502 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 996 transitions. [2020-10-28 12:50:39,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:39,502 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 996 transitions. [2020-10-28 12:50:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-28 12:50:39,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:39,506 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:50:39,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:50:39,506 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1372375553, now seen corresponding path program 1 times [2020-10-28 12:50:39,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:39,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850237486] [2020-10-28 12:50:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:39,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:41,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:41,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-28 12:50:41,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2244 [2020-10-28 12:50:41,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:41,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:50:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:41,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:41,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:41,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:41,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:41,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:50:41,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:41,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:41,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:42,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:42,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:42,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:50:42,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 12:50:42,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:42,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:50:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:42,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850237486] [2020-10-28 12:50:42,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:42,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:50:42,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198466289] [2020-10-28 12:50:42,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:42,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:42,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:42,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:42,297 INFO L87 Difference]: Start difference. First operand 753 states and 996 transitions. Second operand 7 states. [2020-10-28 12:50:45,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:45,085 INFO L93 Difference]: Finished difference Result 1533 states and 2037 transitions. [2020-10-28 12:50:45,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:50:45,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-28 12:50:45,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:45,093 INFO L225 Difference]: With dead ends: 1533 [2020-10-28 12:50:45,093 INFO L226 Difference]: Without dead ends: 786 [2020-10-28 12:50:45,095 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 [2020-10-28 12:50:45,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-10-28 12:50:45,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 753. [2020-10-28 12:50:45,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-28 12:50:45,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 967 transitions. [2020-10-28 12:50:45,137 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 967 transitions. Word has length 140 [2020-10-28 12:50:45,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:45,138 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 967 transitions. [2020-10-28 12:50:45,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:45,138 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 967 transitions. [2020-10-28 12:50:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 12:50:45,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:45,142 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:50:45,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:50:45,142 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:45,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:45,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1007428997, now seen corresponding path program 1 times [2020-10-28 12:50:45,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:45,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100086781] [2020-10-28 12:50:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 12:50:45,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:50:45,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-28 12:50:45,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:45,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:50:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:50:45,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:45,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:45,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:50:45,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:50:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 12:50:45,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:50:45,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:45,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100086781] [2020-10-28 12:50:45,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:45,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:50:45,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134766531] [2020-10-28 12:50:45,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:50:45,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:45,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:50:45,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:50:45,876 INFO L87 Difference]: Start difference. First operand 753 states and 967 transitions. Second operand 5 states. [2020-10-28 12:50:46,333 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:50:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:48,488 INFO L93 Difference]: Finished difference Result 2066 states and 2724 transitions. [2020-10-28 12:50:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:50:48,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-28 12:50:48,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:48,497 INFO L225 Difference]: With dead ends: 2066 [2020-10-28 12:50:48,497 INFO L226 Difference]: Without dead ends: 1319 [2020-10-28 12:50:48,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:50:48,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2020-10-28 12:50:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1315. [2020-10-28 12:50:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1315 states. [2020-10-28 12:50:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1627 transitions. [2020-10-28 12:50:48,552 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1627 transitions. Word has length 151 [2020-10-28 12:50:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:48,553 INFO L481 AbstractCegarLoop]: Abstraction has 1315 states and 1627 transitions. [2020-10-28 12:50:48,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:50:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1627 transitions. [2020-10-28 12:50:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-28 12:50:48,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:48,559 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-28 12:50:48,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:50:48,559 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:48,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2143898752, now seen corresponding path program 1 times [2020-10-28 12:50:48,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:48,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775803845] [2020-10-28 12:50:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:48,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:48,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:52,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:52,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 12:50:52,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:50:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3930 [2020-10-28 12:50:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:52,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:50:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:50:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:52,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:52,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:52,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:52,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:52,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:50:52,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:52,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:52,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:52,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:52,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:52,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:52,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:52,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:52,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:52,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:50:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:50:52,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:52,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:50:52,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:52,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:50:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:52,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:52,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:52,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:50:52,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-28 12:50:52,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:52,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:52,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:50:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:50:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:50:53,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775803845] [2020-10-28 12:50:53,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:53,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:53,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558813644] [2020-10-28 12:50:53,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:53,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:53,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:53,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:53,268 INFO L87 Difference]: Start difference. First operand 1315 states and 1627 transitions. Second operand 7 states. [2020-10-28 12:50:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:56,054 INFO L93 Difference]: Finished difference Result 3202 states and 4049 transitions. [2020-10-28 12:50:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:50:56,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-28 12:50:56,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:56,063 INFO L225 Difference]: With dead ends: 3202 [2020-10-28 12:50:56,064 INFO L226 Difference]: Without dead ends: 1149 [2020-10-28 12:50:56,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:50:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2020-10-28 12:50:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1121. [2020-10-28 12:50:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-10-28 12:50:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1219 transitions. [2020-10-28 12:50:56,115 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1219 transitions. Word has length 234 [2020-10-28 12:50:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:56,116 INFO L481 AbstractCegarLoop]: Abstraction has 1121 states and 1219 transitions. [2020-10-28 12:50:56,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1219 transitions. [2020-10-28 12:50:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-28 12:50:56,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:56,124 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:50:56,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:50:56,125 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:56,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:56,126 INFO L82 PathProgramCache]: Analyzing trace with hash 517265458, now seen corresponding path program 1 times [2020-10-28 12:50:56,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:56,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055269909] [2020-10-28 12:50:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:56,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:56,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:56,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 369 [2020-10-28 12:51:01,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:01,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 12:51:01,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:51:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:01,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:51:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:01,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:01,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 12:51:01,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:01,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:01,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:51:01,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:01,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-28 12:51:01,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:51:02,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055269909] [2020-10-28 12:51:02,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:02,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:02,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647308826] [2020-10-28 12:51:02,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:02,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:02,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:02,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:02,208 INFO L87 Difference]: Start difference. First operand 1121 states and 1219 transitions. Second operand 7 states. [2020-10-28 12:51:04,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:04,311 INFO L93 Difference]: Finished difference Result 2638 states and 2950 transitions. [2020-10-28 12:51:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:04,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 355 [2020-10-28 12:51:04,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:04,327 INFO L225 Difference]: With dead ends: 2638 [2020-10-28 12:51:04,328 INFO L226 Difference]: Without dead ends: 1705 [2020-10-28 12:51:04,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2020-10-28 12:51:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1683. [2020-10-28 12:51:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1683 states. [2020-10-28 12:51:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1841 transitions. [2020-10-28 12:51:04,391 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1841 transitions. Word has length 355 [2020-10-28 12:51:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:04,393 INFO L481 AbstractCegarLoop]: Abstraction has 1683 states and 1841 transitions. [2020-10-28 12:51:04,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1841 transitions. [2020-10-28 12:51:04,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2020-10-28 12:51:04,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:04,406 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:04,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:51:04,407 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:04,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1463171461, now seen corresponding path program 1 times [2020-10-28 12:51:04,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:04,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480217088] [2020-10-28 12:51:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:05,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 504 [2020-10-28 12:51:09,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:09,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 12:51:09,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 254 [2020-10-28 12:51:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:09,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:09,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:09,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:51:09,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:09,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:09,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:51:09,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:10,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:10,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:51:10,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:10,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-28 12:51:10,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:10,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:51:10,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-28 12:51:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:10,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:10,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:10,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:10,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:10,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-28 12:51:10,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:10,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 418 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-28 12:51:11,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480217088] [2020-10-28 12:51:11,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:11,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:51:11,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562669402] [2020-10-28 12:51:11,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:51:11,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:11,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:51:11,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:11,458 INFO L87 Difference]: Start difference. First operand 1683 states and 1841 transitions. Second operand 8 states. [2020-10-28 12:51:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:14,558 INFO L93 Difference]: Finished difference Result 4670 states and 5225 transitions. [2020-10-28 12:51:14,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:14,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 488 [2020-10-28 12:51:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:14,577 INFO L225 Difference]: With dead ends: 4670 [2020-10-28 12:51:14,578 INFO L226 Difference]: Without dead ends: 2993 [2020-10-28 12:51:14,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:51:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2020-10-28 12:51:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2985. [2020-10-28 12:51:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2985 states. [2020-10-28 12:51:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 3296 transitions. [2020-10-28 12:51:14,675 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 3296 transitions. Word has length 488 [2020-10-28 12:51:14,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:14,676 INFO L481 AbstractCegarLoop]: Abstraction has 2985 states and 3296 transitions. [2020-10-28 12:51:14,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:51:14,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 3296 transitions. [2020-10-28 12:51:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-10-28 12:51:14,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:14,694 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:51:14,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:51:14,694 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:14,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:14,695 INFO L82 PathProgramCache]: Analyzing trace with hash -805365459, now seen corresponding path program 1 times [2020-10-28 12:51:14,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:14,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003503780] [2020-10-28 12:51:14,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:16,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:17,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:19,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:19,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 548 [2020-10-28 12:51:19,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:51:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-28 12:51:19,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:19,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 298 [2020-10-28 12:51:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:19,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:20,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:20,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:20,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:20,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:51:20,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:20,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:20,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 12:51:20,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-28 12:51:20,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:20,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 12:51:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-28 12:51:20,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003503780] [2020-10-28 12:51:20,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:20,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:20,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445536740] [2020-10-28 12:51:20,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:20,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:20,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:20,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:20,929 INFO L87 Difference]: Start difference. First operand 2985 states and 3296 transitions. Second operand 7 states. [2020-10-28 12:51:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:23,479 INFO L93 Difference]: Finished difference Result 6706 states and 7552 transitions. [2020-10-28 12:51:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:23,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 532 [2020-10-28 12:51:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:23,502 INFO L225 Difference]: With dead ends: 6706 [2020-10-28 12:51:23,503 INFO L226 Difference]: Without dead ends: 4093 [2020-10-28 12:51:23,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2020-10-28 12:51:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3903. [2020-10-28 12:51:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3903 states. [2020-10-28 12:51:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 4408 transitions. [2020-10-28 12:51:23,654 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 4408 transitions. Word has length 532 [2020-10-28 12:51:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:23,655 INFO L481 AbstractCegarLoop]: Abstraction has 3903 states and 4408 transitions. [2020-10-28 12:51:23,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 4408 transitions. [2020-10-28 12:51:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-28 12:51:23,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:23,665 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:51:23,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:51:23,665 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:23,666 INFO L82 PathProgramCache]: Analyzing trace with hash 175651816, now seen corresponding path program 1 times [2020-10-28 12:51:23,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:23,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472951952] [2020-10-28 12:51:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:23,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:24,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:24,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:28,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 626 [2020-10-28 12:51:28,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-28 12:51:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:28,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:51:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:29,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:29,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:51:29,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:29,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:29,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:51:29,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:51:29,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:29,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-28 12:51:29,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:51:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 12:51:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:29,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:51:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:29,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2020-10-28 12:51:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:29,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:51:29,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 350 proven. 249 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-28 12:51:30,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472951952] [2020-10-28 12:51:30,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:30,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:30,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604222112] [2020-10-28 12:51:30,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:30,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:30,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:30,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:30,131 INFO L87 Difference]: Start difference. First operand 3903 states and 4408 transitions. Second operand 7 states. [2020-10-28 12:51:32,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:32,106 INFO L93 Difference]: Finished difference Result 7444 states and 8471 transitions. [2020-10-28 12:51:32,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:51:32,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 608 [2020-10-28 12:51:32,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:32,131 INFO L225 Difference]: With dead ends: 7444 [2020-10-28 12:51:32,131 INFO L226 Difference]: Without dead ends: 3913 [2020-10-28 12:51:32,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:51:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2020-10-28 12:51:32,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3907. [2020-10-28 12:51:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3907 states. [2020-10-28 12:51:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3907 states to 3907 states and 4360 transitions. [2020-10-28 12:51:32,254 INFO L78 Accepts]: Start accepts. Automaton has 3907 states and 4360 transitions. Word has length 608 [2020-10-28 12:51:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:32,255 INFO L481 AbstractCegarLoop]: Abstraction has 3907 states and 4360 transitions. [2020-10-28 12:51:32,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3907 states and 4360 transitions. [2020-10-28 12:51:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2020-10-28 12:51:32,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:32,265 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:32,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:51:32,266 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:32,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:32,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1690118183, now seen corresponding path program 1 times [2020-10-28 12:51:32,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:32,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989283161] [2020-10-28 12:51:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:32,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:32,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:34,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 761 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4782 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:37,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:37,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:37,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:51:37,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:37,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:51:37,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:37,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-28 12:51:37,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:37,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:37,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:51:37,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:38,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-28 12:51:38,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:38,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:38,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 793 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-28 12:51:38,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989283161] [2020-10-28 12:51:38,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:38,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:38,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293691726] [2020-10-28 12:51:38,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:38,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:38,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:38,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:38,579 INFO L87 Difference]: Start difference. First operand 3907 states and 4360 transitions. Second operand 7 states. [2020-10-28 12:51:40,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:40,787 INFO L93 Difference]: Finished difference Result 7816 states and 8753 transitions. [2020-10-28 12:51:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:40,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 741 [2020-10-28 12:51:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:40,878 INFO L225 Difference]: With dead ends: 7816 [2020-10-28 12:51:40,878 INFO L226 Difference]: Without dead ends: 4281 [2020-10-28 12:51:40,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2020-10-28 12:51:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 3909. [2020-10-28 12:51:40,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3909 states. [2020-10-28 12:51:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 4365 transitions. [2020-10-28 12:51:41,002 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 4365 transitions. Word has length 741 [2020-10-28 12:51:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:41,003 INFO L481 AbstractCegarLoop]: Abstraction has 3909 states and 4365 transitions. [2020-10-28 12:51:41,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:41,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 4365 transitions. [2020-10-28 12:51:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-10-28 12:51:41,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:41,016 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:41,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:51:41,017 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:41,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1765223454, now seen corresponding path program 1 times [2020-10-28 12:51:41,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:41,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84829563] [2020-10-28 12:51:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:41,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 839 [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2445 [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:51:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:43,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:43,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:43,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:43,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:43,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:43,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:43,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:43,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:43,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:43,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:43,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:51:43,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:43,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:43,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:43,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:43,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:43,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:51:44,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:44,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:44,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:51:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:44,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:44,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:51:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:44,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:51:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:44,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:51:44,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:44,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:44,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 677 proven. 75 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2020-10-28 12:51:44,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84829563] [2020-10-28 12:51:44,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:44,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:44,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104809418] [2020-10-28 12:51:44,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:44,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:44,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:44,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:44,989 INFO L87 Difference]: Start difference. First operand 3909 states and 4365 transitions. Second operand 7 states. [2020-10-28 12:51:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:46,896 INFO L93 Difference]: Finished difference Result 8196 states and 9310 transitions. [2020-10-28 12:51:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:51:46,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 817 [2020-10-28 12:51:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:46,929 INFO L225 Difference]: With dead ends: 8196 [2020-10-28 12:51:46,929 INFO L226 Difference]: Without dead ends: 4659 [2020-10-28 12:51:46,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2020-10-28 12:51:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 4651. [2020-10-28 12:51:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4651 states. [2020-10-28 12:51:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 5252 transitions. [2020-10-28 12:51:47,092 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 5252 transitions. Word has length 817 [2020-10-28 12:51:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:47,094 INFO L481 AbstractCegarLoop]: Abstraction has 4651 states and 5252 transitions. [2020-10-28 12:51:47,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:47,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 5252 transitions. [2020-10-28 12:51:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-10-28 12:51:47,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:47,107 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:51:47,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:51:47,107 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:47,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:47,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1493277960, now seen corresponding path program 1 times [2020-10-28 12:51:47,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:47,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484858441] [2020-10-28 12:51:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:47,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 850 [2020-10-28 12:51:52,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:52,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-28 12:51:52,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:52,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-28 12:51:52,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:52,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:52,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:52,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:52,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:52,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-28 12:51:52,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:52,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:52,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:52,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:52,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:52,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:52,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:52,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:52,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:52,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:52,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:52,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:52,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:52,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:51:52,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:51:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:52,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:51:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:52,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:53,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:53,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:53,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:53,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 12:51:53,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:53,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:51:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:53,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-28 12:51:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:53,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:53,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:53,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:53,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:53,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-28 12:51:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:53,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:53,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:51:53,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:53,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 708 proven. 249 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2020-10-28 12:51:53,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484858441] [2020-10-28 12:51:53,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:53,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:53,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320875790] [2020-10-28 12:51:53,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:53,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:53,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:53,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:53,870 INFO L87 Difference]: Start difference. First operand 4651 states and 5252 transitions. Second operand 7 states. [2020-10-28 12:51:56,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:56,221 INFO L93 Difference]: Finished difference Result 9304 states and 10544 transitions. [2020-10-28 12:51:56,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:51:56,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 828 [2020-10-28 12:51:56,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:56,246 INFO L225 Difference]: With dead ends: 9304 [2020-10-28 12:51:56,246 INFO L226 Difference]: Without dead ends: 5025 [2020-10-28 12:51:56,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:56,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2020-10-28 12:51:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 4835. [2020-10-28 12:51:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4835 states. [2020-10-28 12:51:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 5443 transitions. [2020-10-28 12:51:56,375 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 5443 transitions. Word has length 828 [2020-10-28 12:51:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:56,376 INFO L481 AbstractCegarLoop]: Abstraction has 4835 states and 5443 transitions. [2020-10-28 12:51:56,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 5443 transitions. [2020-10-28 12:51:56,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2020-10-28 12:51:56,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:56,388 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:51:56,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:51:56,389 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:56,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:56,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1217292226, now seen corresponding path program 1 times [2020-10-28 12:51:56,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:56,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371242084] [2020-10-28 12:51:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 857 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:01,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:01,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:01,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:01,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:01,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:01,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:01,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:52:01,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:01,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:01,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:01,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:01,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:52:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:01,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:02,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:02,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:02,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:52:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:02,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:52:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:02,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:02,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:02,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:02,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:02,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:52:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:02,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:52:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:02,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 715 proven. 249 refuted. 0 times theorem prover too weak. 947 trivial. 0 not checked. [2020-10-28 12:52:03,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371242084] [2020-10-28 12:52:03,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:03,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:03,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581732254] [2020-10-28 12:52:03,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:03,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:03,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:03,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:03,075 INFO L87 Difference]: Start difference. First operand 4835 states and 5443 transitions. Second operand 8 states. [2020-10-28 12:52:06,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:06,283 INFO L93 Difference]: Finished difference Result 9492 states and 10711 transitions. [2020-10-28 12:52:06,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:52:06,284 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 835 [2020-10-28 12:52:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:06,300 INFO L225 Difference]: With dead ends: 9492 [2020-10-28 12:52:06,300 INFO L226 Difference]: Without dead ends: 4847 [2020-10-28 12:52:06,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:52:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2020-10-28 12:52:06,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4843. [2020-10-28 12:52:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4843 states. [2020-10-28 12:52:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 5284 transitions. [2020-10-28 12:52:06,408 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 5284 transitions. Word has length 835 [2020-10-28 12:52:06,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:06,409 INFO L481 AbstractCegarLoop]: Abstraction has 4843 states and 5284 transitions. [2020-10-28 12:52:06,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 5284 transitions. [2020-10-28 12:52:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2020-10-28 12:52:06,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:06,422 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:52:06,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:52:06,423 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:06,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:06,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1392118153, now seen corresponding path program 1 times [2020-10-28 12:52:06,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:06,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587937906] [2020-10-28 12:52:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 940 [2020-10-28 12:52:07,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 978 [2020-10-28 12:52:07,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:07,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:52:07,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:52:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:52:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:07,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:07,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:07,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:07,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:08,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:08,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:08,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:08,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:08,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-28 12:52:08,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:08,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:52:08,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 424 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-28 12:52:08,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587937906] [2020-10-28 12:52:08,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:08,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:52:08,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724484077] [2020-10-28 12:52:08,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:52:08,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:08,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:52:08,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:52:08,769 INFO L87 Difference]: Start difference. First operand 4843 states and 5284 transitions. Second operand 6 states. [2020-10-28 12:52:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:11,128 INFO L93 Difference]: Finished difference Result 9500 states and 10381 transitions. [2020-10-28 12:52:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:52:11,129 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 916 [2020-10-28 12:52:11,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:11,143 INFO L225 Difference]: With dead ends: 9500 [2020-10-28 12:52:11,143 INFO L226 Difference]: Without dead ends: 4847 [2020-10-28 12:52:11,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2020-10-28 12:52:11,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4843. [2020-10-28 12:52:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4843 states. [2020-10-28 12:52:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 5271 transitions. [2020-10-28 12:52:11,264 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 5271 transitions. Word has length 916 [2020-10-28 12:52:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:11,265 INFO L481 AbstractCegarLoop]: Abstraction has 4843 states and 5271 transitions. [2020-10-28 12:52:11,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:52:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 5271 transitions. [2020-10-28 12:52:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2020-10-28 12:52:11,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:11,284 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:52:11,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:52:11,284 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:11,285 INFO L82 PathProgramCache]: Analyzing trace with hash 611551308, now seen corresponding path program 1 times [2020-10-28 12:52:11,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:11,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586891803] [2020-10-28 12:52:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:11,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:13,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:16,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:16,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1061 [2020-10-28 12:52:16,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5133 [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:52:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:16,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:16,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:16,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:16,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:16,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:16,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:16,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:16,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:16,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:52:16,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:16,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:16,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:16,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:17,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:17,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:17,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:17,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:17,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:17,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:17,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:17,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:17,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:17,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:52:17,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:17,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:17,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:17,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:17,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:17,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:17,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-28 12:52:17,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:52:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:17,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:17,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:17,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:17,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:52:17,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:17,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 12:52:17,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:17,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:52:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3241 backedges. 1212 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-28 12:52:18,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586891803] [2020-10-28 12:52:18,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:18,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:18,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308008365] [2020-10-28 12:52:18,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:18,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:18,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:18,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:18,558 INFO L87 Difference]: Start difference. First operand 4843 states and 5271 transitions. Second operand 8 states. [2020-10-28 12:52:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:21,518 INFO L93 Difference]: Finished difference Result 9510 states and 10362 transitions. [2020-10-28 12:52:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:52:21,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1035 [2020-10-28 12:52:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:21,534 INFO L225 Difference]: With dead ends: 9510 [2020-10-28 12:52:21,534 INFO L226 Difference]: Without dead ends: 4857 [2020-10-28 12:52:21,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:52:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2020-10-28 12:52:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4843. [2020-10-28 12:52:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4843 states. [2020-10-28 12:52:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 5233 transitions. [2020-10-28 12:52:21,652 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 5233 transitions. Word has length 1035 [2020-10-28 12:52:21,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:21,654 INFO L481 AbstractCegarLoop]: Abstraction has 4843 states and 5233 transitions. [2020-10-28 12:52:21,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:21,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 5233 transitions. [2020-10-28 12:52:21,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2020-10-28 12:52:21,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:21,679 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:52:21,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:52:21,679 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:21,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:21,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1890922201, now seen corresponding path program 1 times [2020-10-28 12:52:21,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:21,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617872422] [2020-10-28 12:52:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:22,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:22,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:22,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1142 [2020-10-28 12:52:26,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 952 [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:52:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:27,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:27,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:52:27,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:27,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:27,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:27,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:27,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:27,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:52:27,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:52:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:52:27,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 12:52:27,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:52:27,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:28,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3929 backedges. 1352 proven. 2 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2020-10-28 12:52:28,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617872422] [2020-10-28 12:52:28,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:28,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:28,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75121133] [2020-10-28 12:52:28,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:28,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:28,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:28,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:28,841 INFO L87 Difference]: Start difference. First operand 4843 states and 5233 transitions. Second operand 8 states. [2020-10-28 12:52:31,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:31,681 INFO L93 Difference]: Finished difference Result 10420 states and 11342 transitions. [2020-10-28 12:52:31,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:52:31,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1114 [2020-10-28 12:52:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:31,713 INFO L225 Difference]: With dead ends: 10420 [2020-10-28 12:52:31,713 INFO L226 Difference]: Without dead ends: 5581 [2020-10-28 12:52:31,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:52:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2020-10-28 12:52:31,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5389. [2020-10-28 12:52:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5389 states. [2020-10-28 12:52:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 5778 transitions. [2020-10-28 12:52:31,833 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 5778 transitions. Word has length 1114 [2020-10-28 12:52:31,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:31,834 INFO L481 AbstractCegarLoop]: Abstraction has 5389 states and 5778 transitions. [2020-10-28 12:52:31,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 5778 transitions. [2020-10-28 12:52:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1122 [2020-10-28 12:52:31,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:31,856 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:52:31,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:52:31,857 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:31,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:31,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2040146675, now seen corresponding path program 1 times [2020-10-28 12:52:31,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:31,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74109921] [2020-10-28 12:52:31,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:32,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:32,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1149 [2020-10-28 12:52:37,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:52:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-28 12:52:37,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:52:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:52:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-28 12:52:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:37,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:37,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 12:52:37,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:37,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:37,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:52:37,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:37,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:52:37,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:52:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:38,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:38,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:38,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-28 12:52:38,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:38,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:52:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:38,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:38,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:38,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:38,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:52:38,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 12:52:38,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:38,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:52:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-28 12:52:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:38,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:52:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3973 backedges. 1733 proven. 203 refuted. 0 times theorem prover too weak. 2037 trivial. 0 not checked. [2020-10-28 12:52:39,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74109921] [2020-10-28 12:52:39,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:39,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 12:52:39,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926108224] [2020-10-28 12:52:39,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 12:52:39,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:39,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 12:52:39,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:52:39,105 INFO L87 Difference]: Start difference. First operand 5389 states and 5778 transitions. Second operand 9 states. [2020-10-28 12:52:42,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:42,731 INFO L93 Difference]: Finished difference Result 12264 states and 13221 transitions. [2020-10-28 12:52:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 12:52:42,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1121 [2020-10-28 12:52:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:42,754 INFO L225 Difference]: With dead ends: 12264 [2020-10-28 12:52:42,755 INFO L226 Difference]: Without dead ends: 7065 [2020-10-28 12:52:42,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-28 12:52:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2020-10-28 12:52:42,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 6687. [2020-10-28 12:52:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6687 states. [2020-10-28 12:52:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6687 states to 6687 states and 7215 transitions. [2020-10-28 12:52:42,906 INFO L78 Accepts]: Start accepts. Automaton has 6687 states and 7215 transitions. Word has length 1121 [2020-10-28 12:52:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:42,907 INFO L481 AbstractCegarLoop]: Abstraction has 6687 states and 7215 transitions. [2020-10-28 12:52:42,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 12:52:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6687 states and 7215 transitions. [2020-10-28 12:52:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2020-10-28 12:52:42,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:42,943 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 12:52:42,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:52:42,943 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:42,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1250753668, now seen corresponding path program 1 times [2020-10-28 12:52:42,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:42,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428531815] [2020-10-28 12:52:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:45,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:47,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1687 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:52:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:48,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:48,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:48,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:48,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:48,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:48,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:48,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:52:48,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:48,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:48,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:52:48,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:52:48,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:52:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:48,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:52:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:48,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:48,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:48,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:52:48,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:52:48,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:48,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:49,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:52:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:49,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:49,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:52:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 12:52:49,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:49,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 12:52:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:49,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-28 12:52:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:49,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:49,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:49,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:52:49,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7963 backedges. 1931 proven. 2 refuted. 0 times theorem prover too weak. 6030 trivial. 0 not checked. [2020-10-28 12:52:50,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428531815] [2020-10-28 12:52:50,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:50,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:50,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224541133] [2020-10-28 12:52:50,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:50,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:50,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:50,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:50,828 INFO L87 Difference]: Start difference. First operand 6687 states and 7215 transitions. Second operand 7 states. [2020-10-28 12:52:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:53,045 INFO L93 Difference]: Finished difference Result 14868 states and 16174 transitions. [2020-10-28 12:52:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:52:53,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1653 [2020-10-28 12:52:53,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:53,071 INFO L225 Difference]: With dead ends: 14868 [2020-10-28 12:52:53,072 INFO L226 Difference]: Without dead ends: 7441 [2020-10-28 12:52:53,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7441 states. [2020-10-28 12:52:53,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7441 to 6857. [2020-10-28 12:52:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6857 states. [2020-10-28 12:52:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 7345 transitions. [2020-10-28 12:52:53,223 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 7345 transitions. Word has length 1653 [2020-10-28 12:52:53,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:53,225 INFO L481 AbstractCegarLoop]: Abstraction has 6857 states and 7345 transitions. [2020-10-28 12:52:53,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:53,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 7345 transitions. [2020-10-28 12:52:53,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1692 [2020-10-28 12:52:53,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:53,353 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 3, 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] [2020-10-28 12:52:53,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:52:53,353 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:53,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:53,354 INFO L82 PathProgramCache]: Analyzing trace with hash 592098187, now seen corresponding path program 1 times [2020-10-28 12:52:53,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:53,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744755123] [2020-10-28 12:52:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:58,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1727 [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5125 [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:52:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:52:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 317 [2020-10-28 12:52:58,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:58,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:58,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:58,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:58,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:58,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:58,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:58,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:58,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:58,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:58,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:58,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:58,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:59,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:59,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:59,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:59,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:59,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:52:59,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:52:59,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:59,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:59,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:52:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:52:59,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:52:59,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:59,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:59,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:52:59,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:59,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:52:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:59,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:52:59,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:59,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-28 12:52:59,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:59,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:52:59,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:00,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:00,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:00,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:53:00,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:53:00,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:00,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:53:00,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:00,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1427 [2020-10-28 12:53:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:00,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:00,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:53:00,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:00,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:00,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1513 [2020-10-28 12:53:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:00,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:00,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:00,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:53:00,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8886 backedges. 3080 proven. 400 refuted. 0 times theorem prover too weak. 5406 trivial. 0 not checked. [2020-10-28 12:53:03,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744755123] [2020-10-28 12:53:03,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:03,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:53:03,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781122543] [2020-10-28 12:53:03,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:53:03,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:03,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:53:03,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:53:03,592 INFO L87 Difference]: Start difference. First operand 6857 states and 7345 transitions. Second operand 8 states. [2020-10-28 12:53:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:05,810 INFO L93 Difference]: Finished difference Result 14262 states and 15270 transitions. [2020-10-28 12:53:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 12:53:05,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1691 [2020-10-28 12:53:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:05,832 INFO L225 Difference]: With dead ends: 14262 [2020-10-28 12:53:05,832 INFO L226 Difference]: Without dead ends: 7043 [2020-10-28 12:53:05,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:53:05,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7043 states. [2020-10-28 12:53:05,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7043 to 6669. [2020-10-28 12:53:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6669 states. [2020-10-28 12:53:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 7074 transitions. [2020-10-28 12:53:05,966 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 7074 transitions. Word has length 1691 [2020-10-28 12:53:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:05,968 INFO L481 AbstractCegarLoop]: Abstraction has 6669 states and 7074 transitions. [2020-10-28 12:53:05,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:53:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 7074 transitions. [2020-10-28 12:53:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2020-10-28 12:53:06,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:06,008 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 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, 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, 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] [2020-10-28 12:53:06,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:53:06,008 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:06,009 INFO L82 PathProgramCache]: Analyzing trace with hash 437133145, now seen corresponding path program 1 times [2020-10-28 12:53:06,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:06,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681581665] [2020-10-28 12:53:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:06,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:08,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:09,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:11,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:11,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1751 [2020-10-28 12:53:11,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5118 [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1682 [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:53:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:11,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:11,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:11,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:11,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:11,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:11,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:11,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:11,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:53:11,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:11,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:11,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:11,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:11,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:11,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:11,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:53:11,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:11,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:11,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:11,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:11,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:12,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:53:12,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:12,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:53:12,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:12,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:53:12,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:53:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:53:12,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:53:12,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:12,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:53:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:12,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:53:12,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:53:12,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:12,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 12:53:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9137 backedges. 790 proven. 13 refuted. 0 times theorem prover too weak. 8334 trivial. 0 not checked. [2020-10-28 12:53:14,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681581665] [2020-10-28 12:53:14,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:14,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:53:14,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112130780] [2020-10-28 12:53:14,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:53:14,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:14,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:53:14,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:53:14,287 INFO L87 Difference]: Start difference. First operand 6669 states and 7074 transitions. Second operand 5 states. [2020-10-28 12:53:15,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:15,690 INFO L93 Difference]: Finished difference Result 6671 states and 7076 transitions. [2020-10-28 12:53:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:53:15,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1715 [2020-10-28 12:53:15,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:15,696 INFO L225 Difference]: With dead ends: 6671 [2020-10-28 12:53:15,696 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:53:15,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:53:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:53:15,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:53:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:53:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:53:15,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1715 [2020-10-28 12:53:15,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:15,705 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:53:15,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:53:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:53:15,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:53:15,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:53:15,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:53:16,512 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 241 [2020-10-28 12:53:17,992 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 241 [2020-10-28 12:53:19,445 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 247 DAG size of output: 54 [2020-10-28 12:53:19,689 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 32 [2020-10-28 12:53:22,308 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 294 DAG size of output: 72 [2020-10-28 12:53:23,727 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 247 DAG size of output: 54 [2020-10-28 12:53:24,506 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 51 [2020-10-28 12:53:24,541 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:53:24,541 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:53:24,541 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:53:24,542 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:53:24,542 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:53:24,542 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)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-28 12:53:24,542 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:53:24,542 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,543 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,544 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,545 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,546 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,547 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,548 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,549 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,549 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:53:24,549 INFO L270 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: (let ((.cse1 (not (<= 7 |old(~a15~0)|))) (.cse4 (not (= |old(~a24~0)| 1))) (.cse0 (not (= 6 |old(~a21~0)|))) (.cse5 (not (<= |old(~a12~0)| 73282))) (.cse2 (not (<= |old(~a21~0)| 9))) (.cse3 (not (<= 9 |old(~a21~0)|)))) (and (or .cse0 .cse1) (or .cse2 .cse3 (not (<= |old(~a12~0)| 75))) (or (not (<= 7 |old(~a21~0)|)) .cse1) (or .cse4 (not (= 5 |old(~a15~0)|))) (or .cse4 (not (<= 10 |old(~a21~0)|)) (not (<= |old(~a12~0)| 10))) (or .cse5 .cse0) (or (not (<= 8 |old(~a21~0)|)) .cse5 (not (<= |old(~a21~0)| 8))) (or (not (< 80 |old(~a12~0)|)) .cse2 .cse3))) [2020-10-28 12:53:24,549 INFO L274 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-10-28 12:53:24,549 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:53:24,549 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:53:24,549 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:53:24,550 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:53:24,551 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse9 (= ~a24~0 |old(~a24~0)|)) (.cse10 (= ~a12~0 |old(~a12~0)|)) (.cse11 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (and .cse9 (= ~a21~0 6) .cse10 .cse11)) (.cse2 (not (= 6 |old(~a21~0)|))) (.cse1 (not (<= |old(~a12~0)| 73282))) (.cse4 (not (<= 8 |old(~a21~0)|))) (.cse7 (not (<= |old(~a21~0)| 9))) (.cse5 (and .cse9 .cse12 .cse10 .cse11)) (.cse8 (not (<= 9 |old(~a21~0)|))) (.cse3 (not (<= 7 |old(~a15~0)|))) (.cse6 (not (= |old(~a24~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 .cse3) (or .cse4 .cse5 .cse1 (not (<= |old(~a21~0)| 8))) (or .cse6 (not (<= 10 |old(~a21~0)|)) .cse5 (not (<= |old(~a12~0)| 10))) (or .cse4 .cse5 .cse3) (or (not (< 80 |old(~a12~0)|)) .cse7 .cse5 .cse8) (or .cse7 .cse5 .cse8 (not (<= |old(~a12~0)| 75))) (or (and (<= ~a21~0 7) (<= 7 ~a21~0) .cse9 .cse10 .cse11) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) .cse3) (or .cse6 (and (= 5 ~a15~0) .cse12 (= ~a24~0 1) .cse10) (not (= 5 |old(~a15~0)|)))))) [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:53:24,552 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:53:24,553 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:53:24,554 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:53:24,555 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,556 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:53:24,557 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:53:24,558 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,559 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,560 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,561 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,562 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:53:24,563 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:53:24,564 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:53:24,564 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,565 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,566 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:24,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:53:24,566 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (<= 7 ~a21~0) (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1)) [2020-10-28 12:53:24,566 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:53:24,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:53:24,566 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (= 8 |old(~a21~0)|) (and (<= ~a21~0 7) (<= 7 ~a21~0) (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|)) (not (= |old(~a24~0)| 1)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 8)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-10-28 12:53:24,566 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse3 (= ~a24~0 1)) (.cse4 (<= ~a21~0 9)) (.cse0 (<= 7 ~a15~0)) (.cse1 (= ~a21~0 6)) (.cse5 (<= 8 ~a21~0)) (.cse2 (<= ~a12~0 73282))) (or (not (= |old(~a24~0)| 1)) (and (<= 7 ~a21~0) .cse0) (and .cse1 .cse2) (not (= 8 |old(~a15~0)|)) (and (<= ~a12~0 10) .cse3 (<= 10 ~a21~0)) (and (<= 9 ~a21~0) (< 80 ~a12~0) .cse4) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (= 5 ~a15~0) .cse3) (and (<= ~a12~0 75) .cse5 .cse4) (and .cse0 .cse1) (and .cse5 .cse2 (<= ~a21~0 8)) (not (<= 7 |old(~a21~0)|)))) [2020-10-28 12:53:24,566 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:53:24,566 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:53:24,566 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:53:24,567 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse3 (= ~a24~0 1)) (.cse4 (<= ~a21~0 9)) (.cse0 (<= 7 ~a15~0)) (.cse1 (= ~a21~0 6)) (.cse5 (<= 8 ~a21~0)) (.cse2 (<= ~a12~0 73282))) (or (not (= |old(~a24~0)| 1)) (and (<= 7 ~a21~0) .cse0) (and .cse1 .cse2) (not (= 8 |old(~a15~0)|)) (and (<= ~a12~0 10) .cse3 (<= 10 ~a21~0)) (and (<= 9 ~a21~0) (< 80 ~a12~0) .cse4) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (= 5 ~a15~0) .cse3) (and (<= ~a12~0 75) .cse5 .cse4) (and .cse0 .cse1) (and .cse5 .cse2 (<= ~a21~0 8)) (not (<= 7 |old(~a21~0)|)))) [2020-10-28 12:53:24,567 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:53:24,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:53:24 BoogieIcfgContainer [2020-10-28 12:53:24,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:53:24,606 INFO L168 Benchmark]: Toolchain (without parser) took 177541.48 ms. Allocated memory was 157.3 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 130.9 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2020-10-28 12:53:24,607 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 73.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:53:24,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 836.17 ms. Allocated memory is still 157.3 MB. Free memory was 130.3 MB in the beginning and 131.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-10-28 12:53:24,608 INFO L168 Benchmark]: Boogie Preprocessor took 172.74 ms. Allocated memory is still 157.3 MB. Free memory was 131.5 MB in the beginning and 126.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:53:24,614 INFO L168 Benchmark]: RCFGBuilder took 1781.96 ms. Allocated memory is still 157.3 MB. Free memory was 126.3 MB in the beginning and 95.2 MB in the end (delta: 31.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:53:24,615 INFO L168 Benchmark]: TraceAbstraction took 174736.47 ms. Allocated memory was 157.3 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 94.7 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2020-10-28 12:53:24,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 73.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 836.17 ms. Allocated memory is still 157.3 MB. Free memory was 130.3 MB in the beginning and 131.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 172.74 ms. Allocated memory is still 157.3 MB. Free memory was 131.5 MB in the beginning and 126.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1781.96 ms. Allocated memory is still 157.3 MB. Free memory was 126.3 MB in the beginning and 95.2 MB in the end (delta: 31.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 174736.47 ms. Allocated memory was 157.3 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 94.7 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.6 GB. 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: 882]: Loop Invariant Derived loop invariant: (((((((((((!(\old(a24) == 1) || (7 <= a21 && 7 <= a15)) || (a21 == 6 && a12 <= 73282)) || !(8 == \old(a15))) || ((a12 <= 10 && a24 == 1) && 10 <= a21)) || ((9 <= a21 && 80 < a12) && a21 <= 9)) || !(\old(a21) <= 7)) || !(\old(a12) + 49 <= 0)) || (5 == a15 && a24 == 1)) || ((a12 <= 75 && 8 <= a21) && a21 <= 9)) || (7 <= a15 && a21 == 6)) || ((8 <= a21 && a12 <= 73282) && a21 <= 8)) || !(7 <= \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 165.7s, OverallIterations: 20, TraceHistogramMax: 14, AutomataDifference: 51.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 548 SDtfs, 13174 SDslu, 793 SDs, 0 SdLazy, 21348 SolverSat, 2340 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 522 GetRequests, 333 SyntacticMatches, 2 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6857occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 2438 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 774 PreInvPairs, 872 NumberOfFragments, 616 HoareAnnotationTreeSize, 774 FomulaSimplifications, 161008 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 21437 FormulaSimplificationTreeSizeReductionInter, 6.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 96.5s InterpolantComputationTime, 15177 NumberOfCodeBlocks, 15177 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 15157 ConstructedInterpolants, 0 QuantifiedInterpolants, 33033135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 47837/49299 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...