/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/Problem16_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:03:39,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:03:39,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:03:39,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:03:39,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:03:39,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:03:39,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:03:39,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:03:39,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:03:39,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:03:39,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:03:39,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:03:39,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:03:39,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:03:39,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:03:39,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:03:39,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:03:39,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:03:39,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:03:39,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:03:39,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:03:39,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:03:39,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:03:39,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:03:39,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:03:39,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:03:39,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:03:39,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:03:39,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:03:39,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:03:39,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:03:39,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:03:39,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:03:39,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:03:39,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:03:39,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:03:39,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:03:39,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:03:39,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:03:39,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:03:39,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:03:39,261 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 [2020-10-29 08:03:39,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:03:39,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:03:39,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:03:39,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:03:39,321 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:03:39,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:03:39,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:03:39,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:03:39,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:03:39,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:03:39,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:03:39,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:03:39,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:03:39,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:03:39,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:03:39,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:03:39,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:03:39,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:03:39,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:03:39,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:03:39,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:03:39,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:03:39,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:03:39,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:03:39,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:03:39,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:03:39,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:03:39,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:03:39,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:03:39,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:03:39,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:03:39,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:03:39,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:03:39,789 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:03:39,790 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:03:39,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35.c [2020-10-29 08:03:39,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/593f84652/917f99b92c2b47958207b7abbdcfb69c/FLAG9f8c9cd57 [2020-10-29 08:03:40,793 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:03:40,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label35.c [2020-10-29 08:03:40,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/593f84652/917f99b92c2b47958207b7abbdcfb69c/FLAG9f8c9cd57 [2020-10-29 08:03:40,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/593f84652/917f99b92c2b47958207b7abbdcfb69c [2020-10-29 08:03:40,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:03:40,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:03:40,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:03:40,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:03:40,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:03:40,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:03:40" (1/1) ... [2020-10-29 08:03:40,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b8c235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:40, skipping insertion in model container [2020-10-29 08:03:40,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:03:40" (1/1) ... [2020-10-29 08:03:40,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:03:41,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:03:41,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:03:41,821 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:03:42,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:03:42,118 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:03:42,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42 WrapperNode [2020-10-29 08:03:42,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:03:42,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:03:42,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:03:42,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:03:42,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (1/1) ... [2020-10-29 08:03:42,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:03:42,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:03:42,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:03:42,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:03:42,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (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 [2020-10-29 08:03:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:03:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:03:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:03:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:03:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:03:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:03:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:03:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:03:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:03:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:03:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:03:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:03:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:03:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:03:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:03:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:03:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:03:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:03:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:03:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:03:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:03:44,862 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:03:44,862 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:03:44,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:03:44 BoogieIcfgContainer [2020-10-29 08:03:44,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:03:44,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:03:44,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:03:44,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:03:44,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:03:40" (1/3) ... [2020-10-29 08:03:44,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6665a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:03:44, skipping insertion in model container [2020-10-29 08:03:44,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:42" (2/3) ... [2020-10-29 08:03:44,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6665a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:03:44, skipping insertion in model container [2020-10-29 08:03:44,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:03:44" (3/3) ... [2020-10-29 08:03:44,876 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label35.c [2020-10-29 08:03:44,890 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:03:44,896 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:03:44,911 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:03:44,945 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:03:44,946 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:03:44,946 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:03:44,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:03:44,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:03:44,946 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:03:44,946 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:03:44,947 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:03:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:03:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 08:03:44,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:44,987 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] [2020-10-29 08:03:44,987 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash 824021204, now seen corresponding path program 1 times [2020-10-29 08:03:45,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:45,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415394356] [2020-10-29 08:03:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:45,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:45,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:45,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 08:03:45,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-10-29 08:03:45,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:45,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 08:03:45,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:03:45,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:45,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:45,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:45,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:03:45,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:45,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:46,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:03:46,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415394356] [2020-10-29 08:03:46,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:46,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:03:46,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190089986] [2020-10-29 08:03:46,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:03:46,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:46,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:03:46,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:03:46,062 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:03:46,255 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 08:03:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:51,158 INFO L93 Difference]: Finished difference Result 1174 states and 2171 transitions. [2020-10-29 08:03:51,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:03:51,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-29 08:03:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:51,195 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 08:03:51,196 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:03:51,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:03:51,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:03:51,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 690. [2020-10-29 08:03:51,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-29 08:03:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1078 transitions. [2020-10-29 08:03:51,331 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1078 transitions. Word has length 48 [2020-10-29 08:03:51,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:51,331 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 1078 transitions. [2020-10-29 08:03:51,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:03:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1078 transitions. [2020-10-29 08:03:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-29 08:03:51,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:51,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:51,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:03:51,339 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:51,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:51,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1637821798, now seen corresponding path program 1 times [2020-10-29 08:03:51,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:51,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722690614] [2020-10-29 08:03:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:51,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:52,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 08:03:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-10-29 08:03:52,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:52,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 08:03:52,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:03:52,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:52,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:52,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:52,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:03:52,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:52,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:52,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:52,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:52,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 08:03:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:03:52,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:52,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:03:52,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:03:52,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722690614] [2020-10-29 08:03:52,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:52,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:03:52,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255418931] [2020-10-29 08:03:52,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:52,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:52,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:52,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:52,681 INFO L87 Difference]: Start difference. First operand 690 states and 1078 transitions. Second operand 7 states. [2020-10-29 08:03:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:57,904 INFO L93 Difference]: Finished difference Result 1765 states and 2732 transitions. [2020-10-29 08:03:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:03:57,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2020-10-29 08:03:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:57,917 INFO L225 Difference]: With dead ends: 1765 [2020-10-29 08:03:57,917 INFO L226 Difference]: Without dead ends: 1081 [2020-10-29 08:03:57,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2020-10-29 08:03:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1042. [2020-10-29 08:03:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2020-10-29 08:03:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1495 transitions. [2020-10-29 08:03:58,023 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1495 transitions. Word has length 123 [2020-10-29 08:03:58,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:58,026 INFO L481 AbstractCegarLoop]: Abstraction has 1042 states and 1495 transitions. [2020-10-29 08:03:58,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:58,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1495 transitions. [2020-10-29 08:03:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-29 08:03:58,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:58,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:58,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:03:58,041 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:58,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:58,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1937629716, now seen corresponding path program 1 times [2020-10-29 08:03:58,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:58,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054903863] [2020-10-29 08:03:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:58,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:58,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:59,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:59,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:03:59,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-10-29 08:03:59,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:59,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:03:59,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:59,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:59,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:59,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:59,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:59,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:03:59,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:59,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:59,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:59,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:59,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:59,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:59,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:03:59,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:59,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 08:03:59,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:59,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:03:59,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:03:59,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054903863] [2020-10-29 08:03:59,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:59,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:03:59,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542018642] [2020-10-29 08:03:59,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:59,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:59,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:59,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:59,634 INFO L87 Difference]: Start difference. First operand 1042 states and 1495 transitions. Second operand 7 states. [2020-10-29 08:04:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:04,978 INFO L93 Difference]: Finished difference Result 3167 states and 4633 transitions. [2020-10-29 08:04:04,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:04:04,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-29 08:04:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:04,996 INFO L225 Difference]: With dead ends: 3167 [2020-10-29 08:04:04,996 INFO L226 Difference]: Without dead ends: 2131 [2020-10-29 08:04:05,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:04:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2020-10-29 08:04:05,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2091. [2020-10-29 08:04:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-10-29 08:04:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2716 transitions. [2020-10-29 08:04:05,134 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2716 transitions. Word has length 124 [2020-10-29 08:04:05,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:05,136 INFO L481 AbstractCegarLoop]: Abstraction has 2091 states and 2716 transitions. [2020-10-29 08:04:05,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2716 transitions. [2020-10-29 08:04:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-29 08:04:05,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:05,144 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:04:05,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:04:05,145 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:05,146 INFO L82 PathProgramCache]: Analyzing trace with hash 93535810, now seen corresponding path program 1 times [2020-10-29 08:04:05,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:05,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701588007] [2020-10-29 08:04:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:05,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:07,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:07,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:08,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-29 08:04:08,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:04:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3372 [2020-10-29 08:04:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:08,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:04:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:04:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:04:08,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:08,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:08,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:08,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:08,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:04:08,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:08,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:08,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:08,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:08,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:04:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:08,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:08,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:08,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:04:08,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:04:08,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 08:04:08,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:08,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:08,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:08,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:08,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:04:08,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:08,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:04:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:08,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:09,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:09,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:04:09,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:04:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:09,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:04:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:04:09,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701588007] [2020-10-29 08:04:09,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:09,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:04:09,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41046293] [2020-10-29 08:04:09,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:04:09,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:09,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:04:09,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:04:09,169 INFO L87 Difference]: Start difference. First operand 2091 states and 2716 transitions. Second operand 8 states. [2020-10-29 08:04:14,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:14,915 INFO L93 Difference]: Finished difference Result 4919 states and 6632 transitions. [2020-10-29 08:04:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:04:14,916 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 211 [2020-10-29 08:04:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:14,934 INFO L225 Difference]: With dead ends: 4919 [2020-10-29 08:04:14,934 INFO L226 Difference]: Without dead ends: 2834 [2020-10-29 08:04:14,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:04:14,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2020-10-29 08:04:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2446. [2020-10-29 08:04:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2020-10-29 08:04:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3202 transitions. [2020-10-29 08:04:15,025 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3202 transitions. Word has length 211 [2020-10-29 08:04:15,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:15,025 INFO L481 AbstractCegarLoop]: Abstraction has 2446 states and 3202 transitions. [2020-10-29 08:04:15,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:04:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3202 transitions. [2020-10-29 08:04:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2020-10-29 08:04:15,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:15,035 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:15,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:04:15,036 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:15,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:15,036 INFO L82 PathProgramCache]: Analyzing trace with hash 4089058, now seen corresponding path program 1 times [2020-10-29 08:04:15,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:15,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16017538] [2020-10-29 08:04:15,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:15,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:16,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:16,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:19,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:19,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 405 [2020-10-29 08:04:19,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:04:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4835 [2020-10-29 08:04:19,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:19,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:04:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:04:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:04:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:20,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:20,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:20,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:04:20,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:20,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:20,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:20,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:20,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:20,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:04:20,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:04:20,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:20,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:04:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:20,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:04:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:20,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:20,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:04:20,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:04:20,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-29 08:04:20,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:20,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:20,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:20,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:20,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:04:20,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:20,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:04:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:20,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:21,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:21,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:21,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:21,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 08:04:21,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:21,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:04:21,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 296 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 08:04:21,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16017538] [2020-10-29 08:04:21,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:21,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:21,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669226791] [2020-10-29 08:04:21,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:21,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:21,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:21,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:21,327 INFO L87 Difference]: Start difference. First operand 2446 states and 3202 transitions. Second operand 7 states. [2020-10-29 08:04:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:27,173 INFO L93 Difference]: Finished difference Result 6309 states and 8456 transitions. [2020-10-29 08:04:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:27,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 389 [2020-10-29 08:04:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:27,194 INFO L225 Difference]: With dead ends: 6309 [2020-10-29 08:04:27,194 INFO L226 Difference]: Without dead ends: 3145 [2020-10-29 08:04:27,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:04:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2020-10-29 08:04:27,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3123. [2020-10-29 08:04:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3123 states. [2020-10-29 08:04:27,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 3450 transitions. [2020-10-29 08:04:27,298 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 3450 transitions. Word has length 389 [2020-10-29 08:04:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:27,298 INFO L481 AbstractCegarLoop]: Abstraction has 3123 states and 3450 transitions. [2020-10-29 08:04:27,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 3450 transitions. [2020-10-29 08:04:27,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2020-10-29 08:04:27,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:27,316 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:27,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:04:27,317 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:27,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:27,317 INFO L82 PathProgramCache]: Analyzing trace with hash -549172476, now seen corresponding path program 1 times [2020-10-29 08:04:27,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:27,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715268675] [2020-10-29 08:04:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:27,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:32,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 594 [2020-10-29 08:04:32,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:32,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 08:04:32,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:32,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-29 08:04:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:04:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:32,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:32,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:32,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:04:32,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:32,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:32,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:32,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:32,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:04:32,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:32,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:04:32,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:32,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:32,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:32,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:04:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:32,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:32,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:32,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:32,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-29 08:04:32,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:32,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 08:04:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:04:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:33,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:33,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:33,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:33,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-29 08:04:33,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:33,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:04:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:04:33,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:04:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:33,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:33,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:33,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:33,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:33,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:04:33,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:33,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:33,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:04:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:33,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:33,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:33,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:04:33,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:33,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:04:33,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:33,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:04:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:33,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 430 proven. 178 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2020-10-29 08:04:33,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715268675] [2020-10-29 08:04:33,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:33,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:33,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53589923] [2020-10-29 08:04:33,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:33,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:33,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:33,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:33,958 INFO L87 Difference]: Start difference. First operand 3123 states and 3450 transitions. Second operand 7 states. [2020-10-29 08:04:37,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:37,548 INFO L93 Difference]: Finished difference Result 7972 states and 8946 transitions. [2020-10-29 08:04:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:04:37,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 574 [2020-10-29 08:04:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:37,573 INFO L225 Difference]: With dead ends: 7972 [2020-10-29 08:04:37,574 INFO L226 Difference]: Without dead ends: 4855 [2020-10-29 08:04:37,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:04:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2020-10-29 08:04:37,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4498. [2020-10-29 08:04:37,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4498 states. [2020-10-29 08:04:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 5019 transitions. [2020-10-29 08:04:37,707 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 5019 transitions. Word has length 574 [2020-10-29 08:04:37,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:37,708 INFO L481 AbstractCegarLoop]: Abstraction has 4498 states and 5019 transitions. [2020-10-29 08:04:37,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 5019 transitions. [2020-10-29 08:04:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2020-10-29 08:04:37,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:37,752 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:37,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:04:37,752 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:37,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:37,753 INFO L82 PathProgramCache]: Analyzing trace with hash -641155572, now seen corresponding path program 1 times [2020-10-29 08:04:37,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:37,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621691078] [2020-10-29 08:04:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:38,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:42,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:42,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 930 [2020-10-29 08:04:42,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:04:42,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-29 08:04:42,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:42,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:04:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:04:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:04:42,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:43,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:43,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:43,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:43,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:43,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:43,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:04:43,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:43,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:43,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:43,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:43,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:04:43,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:43,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:43,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:43,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:04:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:43,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-29 08:04:43,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:43,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:04:43,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:43,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:04:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:43,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:43,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:43,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:04:43,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:43,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:04:43,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:43,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:04:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:43,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:04:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:44,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:44,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:44,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:44,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:44,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-29 08:04:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:44,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:44,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:44,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 08:04:44,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:44,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:04:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:44,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-29 08:04:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:44,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:44,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:44,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:04:44,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:44,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:44,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-29 08:04:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:44,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:44,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:44,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:04:44,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 240 proven. 586 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2020-10-29 08:04:45,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621691078] [2020-10-29 08:04:45,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:45,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:45,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422629211] [2020-10-29 08:04:45,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:45,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:45,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:45,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:45,345 INFO L87 Difference]: Start difference. First operand 4498 states and 5019 transitions. Second operand 7 states. [2020-10-29 08:04:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:48,858 INFO L93 Difference]: Finished difference Result 9013 states and 10067 transitions. [2020-10-29 08:04:48,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:48,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 908 [2020-10-29 08:04:48,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:48,884 INFO L225 Difference]: With dead ends: 9013 [2020-10-29 08:04:48,884 INFO L226 Difference]: Without dead ends: 4521 [2020-10-29 08:04:48,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:04:48,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4521 states. [2020-10-29 08:04:49,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4521 to 4503. [2020-10-29 08:04:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4503 states. [2020-10-29 08:04:49,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4503 states to 4503 states and 5024 transitions. [2020-10-29 08:04:49,079 INFO L78 Accepts]: Start accepts. Automaton has 4503 states and 5024 transitions. Word has length 908 [2020-10-29 08:04:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:49,080 INFO L481 AbstractCegarLoop]: Abstraction has 4503 states and 5024 transitions. [2020-10-29 08:04:49,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:49,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4503 states and 5024 transitions. [2020-10-29 08:04:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2020-10-29 08:04:49,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:49,104 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:49,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:04:49,105 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:49,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1071151076, now seen corresponding path program 1 times [2020-10-29 08:04:49,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:49,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778750956] [2020-10-29 08:04:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:49,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:49,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:49,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:52,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:54,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:54,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1032 [2020-10-29 08:04:54,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:04:54,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-29 08:04:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:54,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:04:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-29 08:04:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:54,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:54,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:54,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:54,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:54,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:04:54,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:54,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:54,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:54,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:54,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:54,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:54,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:04:54,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:54,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:04:54,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:54,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:04:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:54,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:04:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:54,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:04:54,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-29 08:04:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:55,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:55,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:04:55,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:55,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-10-29 08:04:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:55,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:55,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:04:55,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:55,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:55,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-10-29 08:04:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:55,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:55,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:55,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:55,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:04:55,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:55,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:04:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:55,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2020-10-29 08:04:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:55,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:55,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:55,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:55,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-29 08:04:55,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:55,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:55,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 793 [2020-10-29 08:04:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:55,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:55,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:55,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:04:55,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:55,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:04:55,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:55,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:04:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2438 backedges. 397 proven. 598 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-29 08:04:56,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778750956] [2020-10-29 08:04:56,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:56,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:56,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519970770] [2020-10-29 08:04:56,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:56,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:56,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:56,869 INFO L87 Difference]: Start difference. First operand 4503 states and 5024 transitions. Second operand 7 states. [2020-10-29 08:05:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:00,512 INFO L93 Difference]: Finished difference Result 10047 states and 11196 transitions. [2020-10-29 08:05:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:05:00,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1008 [2020-10-29 08:05:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:00,544 INFO L225 Difference]: With dead ends: 10047 [2020-10-29 08:05:00,544 INFO L226 Difference]: Without dead ends: 5550 [2020-10-29 08:05:00,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:00,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5550 states. [2020-10-29 08:05:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 5529. [2020-10-29 08:05:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5529 states. [2020-10-29 08:05:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5529 states to 5529 states and 6108 transitions. [2020-10-29 08:05:00,682 INFO L78 Accepts]: Start accepts. Automaton has 5529 states and 6108 transitions. Word has length 1008 [2020-10-29 08:05:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:00,683 INFO L481 AbstractCegarLoop]: Abstraction has 5529 states and 6108 transitions. [2020-10-29 08:05:00,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5529 states and 6108 transitions. [2020-10-29 08:05:00,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1190 [2020-10-29 08:05:00,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:00,710 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:00,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:05:00,710 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:00,711 INFO L82 PathProgramCache]: Analyzing trace with hash 623686254, now seen corresponding path program 1 times [2020-10-29 08:05:00,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:00,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258271829] [2020-10-29 08:05:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1215 [2020-10-29 08:05:06,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:05:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-29 08:05:06,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:05:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:05:06,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:06,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:06,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:06,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:06,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:05:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:05:06,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:05:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:06,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:06,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:05:06,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:05:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:06,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:05:06,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:05:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:05:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:06,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:05:06,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:06,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:05:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:07,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 864 [2020-10-29 08:05:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:07,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:07,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:07,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:07,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:07,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:05:07,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:07,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:07,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2020-10-29 08:05:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:07,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:07,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:07,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3479 backedges. 785 proven. 333 refuted. 0 times theorem prover too weak. 2361 trivial. 0 not checked. [2020-10-29 08:05:08,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258271829] [2020-10-29 08:05:08,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:08,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:08,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678174572] [2020-10-29 08:05:08,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:08,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:08,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:08,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:08,059 INFO L87 Difference]: Start difference. First operand 5529 states and 6108 transitions. Second operand 7 states. [2020-10-29 08:05:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:12,075 INFO L93 Difference]: Finished difference Result 12772 states and 14320 transitions. [2020-10-29 08:05:12,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:05:12,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1189 [2020-10-29 08:05:12,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:12,106 INFO L225 Difference]: With dead ends: 12772 [2020-10-29 08:05:12,107 INFO L226 Difference]: Without dead ends: 7586 [2020-10-29 08:05:12,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:05:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7586 states. [2020-10-29 08:05:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7586 to 6563. [2020-10-29 08:05:12,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6563 states. [2020-10-29 08:05:12,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6563 states to 6563 states and 7367 transitions. [2020-10-29 08:05:12,278 INFO L78 Accepts]: Start accepts. Automaton has 6563 states and 7367 transitions. Word has length 1189 [2020-10-29 08:05:12,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:12,280 INFO L481 AbstractCegarLoop]: Abstraction has 6563 states and 7367 transitions. [2020-10-29 08:05:12,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6563 states and 7367 transitions. [2020-10-29 08:05:12,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2020-10-29 08:05:12,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:12,310 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:12,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:05:12,311 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:12,311 INFO L82 PathProgramCache]: Analyzing trace with hash -2018142856, now seen corresponding path program 1 times [2020-10-29 08:05:12,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:12,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383843078] [2020-10-29 08:05:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:15,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1216 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:17,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:17,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:17,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:05:17,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:17,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:17,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:05:17,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:05:17,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:17,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:05:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:18,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:05:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:05:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:05:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:05:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:05:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:18,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 08:05:18,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:18,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:18,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:05:18,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 865 [2020-10-29 08:05:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 08:05:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 963 proven. 248 refuted. 0 times theorem prover too weak. 2275 trivial. 0 not checked. [2020-10-29 08:05:19,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383843078] [2020-10-29 08:05:19,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:19,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:19,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052780666] [2020-10-29 08:05:19,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:19,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:19,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:19,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:19,434 INFO L87 Difference]: Start difference. First operand 6563 states and 7367 transitions. Second operand 7 states. [2020-10-29 08:05:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:23,884 INFO L93 Difference]: Finished difference Result 14567 states and 16862 transitions. [2020-10-29 08:05:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:05:23,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1190 [2020-10-29 08:05:23,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:23,936 INFO L225 Difference]: With dead ends: 14567 [2020-10-29 08:05:23,936 INFO L226 Difference]: Without dead ends: 8347 [2020-10-29 08:05:23,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:05:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8347 states. [2020-10-29 08:05:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8347 to 8273. [2020-10-29 08:05:24,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8273 states. [2020-10-29 08:05:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8273 states to 8273 states and 9217 transitions. [2020-10-29 08:05:24,143 INFO L78 Accepts]: Start accepts. Automaton has 8273 states and 9217 transitions. Word has length 1190 [2020-10-29 08:05:24,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:24,145 INFO L481 AbstractCegarLoop]: Abstraction has 8273 states and 9217 transitions. [2020-10-29 08:05:24,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8273 states and 9217 transitions. [2020-10-29 08:05:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-29 08:05:24,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:24,178 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, 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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:24,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:05:24,179 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:24,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:24,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1318827672, now seen corresponding path program 1 times [2020-10-29 08:05:24,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:24,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597291690] [2020-10-29 08:05:24,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:24,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:24,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:24,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:29,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1244 [2020-10-29 08:05:29,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-29 08:05:29,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:29,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:05:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:05:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:29,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:29,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:29,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:05:29,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:29,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:29,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:29,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:05:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:05:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:05:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:30,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:05:30,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:05:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:05:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:30,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:05:30,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:05:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:05:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:30,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:05:30,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:05:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:05:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:05:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:30,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:05:30,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:05:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3607 backedges. 503 proven. 740 refuted. 0 times theorem prover too weak. 2364 trivial. 0 not checked. [2020-10-29 08:05:32,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597291690] [2020-10-29 08:05:32,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:32,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:32,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775043060] [2020-10-29 08:05:32,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:32,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:32,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:32,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:32,054 INFO L87 Difference]: Start difference. First operand 8273 states and 9217 transitions. Second operand 7 states. [2020-10-29 08:05:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:36,477 INFO L93 Difference]: Finished difference Result 17230 states and 19342 transitions. [2020-10-29 08:05:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:05:36,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1218 [2020-10-29 08:05:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:36,505 INFO L225 Difference]: With dead ends: 17230 [2020-10-29 08:05:36,506 INFO L226 Difference]: Without dead ends: 9300 [2020-10-29 08:05:36,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9300 states. [2020-10-29 08:05:36,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9300 to 8957. [2020-10-29 08:05:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8957 states. [2020-10-29 08:05:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8957 states to 8957 states and 9923 transitions. [2020-10-29 08:05:36,719 INFO L78 Accepts]: Start accepts. Automaton has 8957 states and 9923 transitions. Word has length 1218 [2020-10-29 08:05:36,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:36,720 INFO L481 AbstractCegarLoop]: Abstraction has 8957 states and 9923 transitions. [2020-10-29 08:05:36,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:36,720 INFO L276 IsEmpty]: Start isEmpty. Operand 8957 states and 9923 transitions. [2020-10-29 08:05:36,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1280 [2020-10-29 08:05:36,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:36,758 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, 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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:05:36,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:05:36,758 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:36,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:36,759 INFO L82 PathProgramCache]: Analyzing trace with hash 526354762, now seen corresponding path program 1 times [2020-10-29 08:05:36,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:36,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073821671] [2020-10-29 08:05:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:37,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:37,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1305 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1078 [2020-10-29 08:05:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 08:05:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,470 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:05:42,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:42,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:42,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:05:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:05:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:05:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:05:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:42,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:05:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:05:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:43,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:05:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:43,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:43,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 08:05:43,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:43,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 08:05:43,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 1273 proven. 2 refuted. 0 times theorem prover too weak. 2406 trivial. 0 not checked. [2020-10-29 08:05:44,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073821671] [2020-10-29 08:05:44,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:44,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:44,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577101604] [2020-10-29 08:05:44,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:44,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:44,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:44,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:44,291 INFO L87 Difference]: Start difference. First operand 8957 states and 9923 transitions. Second operand 7 states. [2020-10-29 08:05:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:48,633 INFO L93 Difference]: Finished difference Result 19634 states and 21933 transitions. [2020-10-29 08:05:48,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:05:48,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1279 [2020-10-29 08:05:48,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:48,668 INFO L225 Difference]: With dead ends: 19634 [2020-10-29 08:05:48,668 INFO L226 Difference]: Without dead ends: 9976 [2020-10-29 08:05:48,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:48,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9976 states. [2020-10-29 08:05:48,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9976 to 9948. [2020-10-29 08:05:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9948 states. [2020-10-29 08:05:48,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9948 states to 9948 states and 10724 transitions. [2020-10-29 08:05:48,872 INFO L78 Accepts]: Start accepts. Automaton has 9948 states and 10724 transitions. Word has length 1279 [2020-10-29 08:05:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:48,874 INFO L481 AbstractCegarLoop]: Abstraction has 9948 states and 10724 transitions. [2020-10-29 08:05:48,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 9948 states and 10724 transitions. [2020-10-29 08:05:48,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1495 [2020-10-29 08:05:48,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:48,916 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, 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, 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, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:48,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:05:48,917 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:48,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:48,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1501166228, now seen corresponding path program 1 times [2020-10-29 08:05:48,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:48,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668698724] [2020-10-29 08:05:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:49,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:49,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1522 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-29 08:05:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:05:54,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:54,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:54,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:54,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:54,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:54,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:54,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:54,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:05:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:54,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:54,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:05:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:05:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:54,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:54,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:05:54,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:05:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:05:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:54,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:05:54,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:54,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:05:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:55,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:55,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:55,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:05:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:55,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:55,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:55,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:55,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:05:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:55,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:55,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:05:55,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:55,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:05:55,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:55,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:05:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:55,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1279 [2020-10-29 08:05:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:55,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:55,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4920 backedges. 913 proven. 530 refuted. 0 times theorem prover too weak. 3477 trivial. 0 not checked. [2020-10-29 08:05:56,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668698724] [2020-10-29 08:05:56,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:56,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:56,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659435522] [2020-10-29 08:05:56,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:56,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:56,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:56,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:56,650 INFO L87 Difference]: Start difference. First operand 9948 states and 10724 transitions. Second operand 7 states. [2020-10-29 08:06:01,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:01,352 INFO L93 Difference]: Finished difference Result 22948 states and 24884 transitions. [2020-10-29 08:06:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:01,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1494 [2020-10-29 08:06:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:01,396 INFO L225 Difference]: With dead ends: 22948 [2020-10-29 08:06:01,396 INFO L226 Difference]: Without dead ends: 13343 [2020-10-29 08:06:01,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13343 states. [2020-10-29 08:06:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13343 to 12996. [2020-10-29 08:06:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12996 states. [2020-10-29 08:06:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12996 states to 12996 states and 13935 transitions. [2020-10-29 08:06:01,673 INFO L78 Accepts]: Start accepts. Automaton has 12996 states and 13935 transitions. Word has length 1494 [2020-10-29 08:06:01,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:01,674 INFO L481 AbstractCegarLoop]: Abstraction has 12996 states and 13935 transitions. [2020-10-29 08:06:01,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 12996 states and 13935 transitions. [2020-10-29 08:06:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2020-10-29 08:06:01,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:01,720 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, 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, 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, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:01,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:06:01,721 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:01,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:01,722 INFO L82 PathProgramCache]: Analyzing trace with hash -2068898022, now seen corresponding path program 1 times [2020-10-29 08:06:01,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:01,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040091578] [2020-10-29 08:06:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:02,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1523 [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1079 [2020-10-29 08:06:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:06:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:07,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:06:07,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:06:07,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:06:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:06:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:07,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:06:07,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:06:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:06:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:06:07,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:06:07,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-29 08:06:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-29 08:06:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:07,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:06:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:07,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-29 08:06:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:08,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:06:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:08,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1280 [2020-10-29 08:06:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:08,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:08,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:08,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4928 backedges. 1422 proven. 174 refuted. 0 times theorem prover too weak. 3332 trivial. 0 not checked. [2020-10-29 08:06:09,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040091578] [2020-10-29 08:06:09,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:09,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:09,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230837169] [2020-10-29 08:06:09,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:09,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:09,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:09,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:09,616 INFO L87 Difference]: Start difference. First operand 12996 states and 13935 transitions. Second operand 7 states. [2020-10-29 08:06:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:13,833 INFO L93 Difference]: Finished difference Result 28032 states and 30196 transitions. [2020-10-29 08:06:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:06:13,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1495 [2020-10-29 08:06:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:13,884 INFO L225 Difference]: With dead ends: 28032 [2020-10-29 08:06:13,884 INFO L226 Difference]: Without dead ends: 15381 [2020-10-29 08:06:13,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:13,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15381 states. [2020-10-29 08:06:14,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15381 to 15036. [2020-10-29 08:06:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15036 states. [2020-10-29 08:06:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15036 states to 15036 states and 16071 transitions. [2020-10-29 08:06:14,172 INFO L78 Accepts]: Start accepts. Automaton has 15036 states and 16071 transitions. Word has length 1495 [2020-10-29 08:06:14,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:14,173 INFO L481 AbstractCegarLoop]: Abstraction has 15036 states and 16071 transitions. [2020-10-29 08:06:14,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand 15036 states and 16071 transitions. [2020-10-29 08:06:14,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1610 [2020-10-29 08:06:14,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:14,385 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, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:14,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:06:14,385 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:14,386 INFO L82 PathProgramCache]: Analyzing trace with hash 986553850, now seen corresponding path program 1 times [2020-10-29 08:06:14,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:14,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247121516] [2020-10-29 08:06:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:14,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:18,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1635 [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-29 08:06:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:06:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:19,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:19,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:19,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:19,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:19,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:20,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:20,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:20,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:20,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:06:20,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:20,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:20,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:20,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:20,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:20,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:20,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:20,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:20,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:20,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:20,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:06:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:20,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:20,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:06:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:20,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:20,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:06:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:20,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 08:06:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:20,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:20,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:20,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:06:20,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-29 08:06:20,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:20,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:06:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:21,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:06:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:21,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:21,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:21,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:21,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:21,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-29 08:06:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:21,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:21,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:21,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1394 [2020-10-29 08:06:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:21,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:21,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:21,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4863 backedges. 1157 proven. 495 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2020-10-29 08:06:23,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247121516] [2020-10-29 08:06:23,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:23,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:23,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71672306] [2020-10-29 08:06:23,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:23,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:23,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:23,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:23,465 INFO L87 Difference]: Start difference. First operand 15036 states and 16071 transitions. Second operand 7 states. [2020-10-29 08:06:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:27,741 INFO L93 Difference]: Finished difference Result 29735 states and 31807 transitions. [2020-10-29 08:06:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:06:27,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1609 [2020-10-29 08:06:27,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:27,786 INFO L225 Difference]: With dead ends: 29735 [2020-10-29 08:06:27,786 INFO L226 Difference]: Without dead ends: 15044 [2020-10-29 08:06:27,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:27,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15044 states. [2020-10-29 08:06:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15044 to 15036. [2020-10-29 08:06:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15036 states. [2020-10-29 08:06:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15036 states to 15036 states and 16063 transitions. [2020-10-29 08:06:28,080 INFO L78 Accepts]: Start accepts. Automaton has 15036 states and 16063 transitions. Word has length 1609 [2020-10-29 08:06:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:28,081 INFO L481 AbstractCegarLoop]: Abstraction has 15036 states and 16063 transitions. [2020-10-29 08:06:28,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 15036 states and 16063 transitions. [2020-10-29 08:06:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1746 [2020-10-29 08:06:28,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:28,127 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, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:28,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:06:28,128 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:28,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:28,129 INFO L82 PathProgramCache]: Analyzing trace with hash 894195250, now seen corresponding path program 1 times [2020-10-29 08:06:28,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:28,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411878075] [2020-10-29 08:06:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:30,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:33,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1773 [2020-10-29 08:06:33,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:06:33,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:33,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:33,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:33,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:33,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:33,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:33,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:06:33,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:33,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:33,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:34,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:34,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:34,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:06:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:34,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:34,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:34,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:06:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:34,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:34,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:34,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:06:34,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:34,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:06:34,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:34,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:06:34,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:34,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:06:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:34,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:34,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:06:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:34,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-29 08:06:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:34,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:35,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:35,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:06:35,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:35,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 08:06:35,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:35,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:35,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:35,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:06:35,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:35,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:35,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1203 [2020-10-29 08:06:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:35,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:35,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1315 [2020-10-29 08:06:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:35,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:35,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:06:35,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:35,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:06:35,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:35,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:06:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:35,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:35,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1530 [2020-10-29 08:06:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:35,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:35,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:35,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5614 backedges. 1087 proven. 754 refuted. 0 times theorem prover too weak. 3773 trivial. 0 not checked. [2020-10-29 08:06:38,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411878075] [2020-10-29 08:06:38,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:38,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:38,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99428033] [2020-10-29 08:06:38,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:38,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:38,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:38,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:38,294 INFO L87 Difference]: Start difference. First operand 15036 states and 16063 transitions. Second operand 7 states. [2020-10-29 08:06:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:43,294 INFO L93 Difference]: Finished difference Result 30412 states and 32507 transitions. [2020-10-29 08:06:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:43,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1745 [2020-10-29 08:06:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:43,330 INFO L225 Difference]: With dead ends: 30412 [2020-10-29 08:06:43,331 INFO L226 Difference]: Without dead ends: 15721 [2020-10-29 08:06:43,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:43,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15721 states. [2020-10-29 08:06:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15721 to 15715. [2020-10-29 08:06:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15715 states. [2020-10-29 08:06:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15715 states to 15715 states and 16778 transitions. [2020-10-29 08:06:43,640 INFO L78 Accepts]: Start accepts. Automaton has 15715 states and 16778 transitions. Word has length 1745 [2020-10-29 08:06:43,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:43,641 INFO L481 AbstractCegarLoop]: Abstraction has 15715 states and 16778 transitions. [2020-10-29 08:06:43,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 15715 states and 16778 transitions. [2020-10-29 08:06:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1749 [2020-10-29 08:06:43,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:43,687 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, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:43,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:06:43,688 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:43,688 INFO L82 PathProgramCache]: Analyzing trace with hash 537980672, now seen corresponding path program 1 times [2020-10-29 08:06:43,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:43,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484184719] [2020-10-29 08:06:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:44,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:44,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1776 [2020-10-29 08:06:49,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 679 [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:06:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:49,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:49,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:06:49,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:49,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:49,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:49,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:06:49,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:06:49,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:06:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:06:49,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:06:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:06:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:06:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:06:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:06:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:49,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:49,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:06:49,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-29 08:06:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1206 [2020-10-29 08:06:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1318 [2020-10-29 08:06:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:06:50,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:06:50,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:06:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1533 [2020-10-29 08:06:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 1090 proven. 754 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-10-29 08:06:52,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484184719] [2020-10-29 08:06:52,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:52,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:52,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139222302] [2020-10-29 08:06:52,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:52,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:52,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:52,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:52,918 INFO L87 Difference]: Start difference. First operand 15715 states and 16778 transitions. Second operand 7 states. [2020-10-29 08:06:57,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:57,735 INFO L93 Difference]: Finished difference Result 32110 states and 34349 transitions. [2020-10-29 08:06:57,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:06:57,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1748 [2020-10-29 08:06:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:57,765 INFO L225 Difference]: With dead ends: 32110 [2020-10-29 08:06:57,765 INFO L226 Difference]: Without dead ends: 16401 [2020-10-29 08:06:57,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16401 states. [2020-10-29 08:06:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16401 to 16389. [2020-10-29 08:06:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16389 states. [2020-10-29 08:06:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 17465 transitions. [2020-10-29 08:06:58,045 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 17465 transitions. Word has length 1748 [2020-10-29 08:06:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:58,046 INFO L481 AbstractCegarLoop]: Abstraction has 16389 states and 17465 transitions. [2020-10-29 08:06:58,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 17465 transitions. [2020-10-29 08:06:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1940 [2020-10-29 08:06:58,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:58,097 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, 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, 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, 8, 8, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:58,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 08:06:58,097 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:58,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:58,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1303643754, now seen corresponding path program 1 times [2020-10-29 08:06:58,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:58,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170149430] [2020-10-29 08:06:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:58,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1967 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1314 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 649 [2020-10-29 08:07:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:03,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:03,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:03,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:03,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:03,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:03,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:07:03,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:03,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:03,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:03,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:03,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:03,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:03,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:03,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:04,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:07:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:04,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:04,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:07:04,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:04,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:07:04,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:04,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:04,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:04,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-29 08:07:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:04,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:04,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 08:07:04,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:04,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:07:04,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:04,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:04,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:04,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-10-29 08:07:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:04,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:07:04,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:04,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-29 08:07:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:07:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:04,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1302 [2020-10-29 08:07:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:04,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:07:04,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-29 08:07:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:04,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:04,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:05,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:05,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-29 08:07:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:05,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1668 [2020-10-29 08:07:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:05,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:05,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:05,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-29 08:07:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6694 backedges. 456 proven. 9 refuted. 0 times theorem prover too weak. 6229 trivial. 0 not checked. [2020-10-29 08:07:07,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170149430] [2020-10-29 08:07:07,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:07,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:07:07,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214781351] [2020-10-29 08:07:07,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:07:07,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:07,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:07:07,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:07:07,524 INFO L87 Difference]: Start difference. First operand 16389 states and 17465 transitions. Second operand 5 states.